Factor the following expression using the GCF: 2dr – 4r.

r(2d – 4)
2r(d – 2)
2(dr – 2r)
2r(d – 1)

There are 8 children in Marcy's preschool class. During free time yesterday, 4 of them chose to play dress-up.

What is the probability that a randomly selected child chose to play dress-up yesterday?

Write your answer as a fraction or whole number.

I suck at math so be nice n help:)

What is the probability of rolling a number on a number cube and getting a number less than or equal to 3? ****Hint: Reduce

A. 1/3
B. 1/6
C. 1/2
D. 4/6

pls helppp The question is down below in the picture pls helppp!

PLEASE HELP ME. I GOT ONE QUESTION WRONG AND IF I GET THIS WRONG I WILL FAIL.

an arts academy requires there to be 4 teachers for every 64 students and 3 tutors for every 33 students. how many students does the academy have per teacher? per tutor? how many tutors does the academy need if it has 121 students?

please and ty for ur help

Please answer both of these questions. :) Thank you!

There were 450 kids at a kindergarten. After some kids of the kindergarten went into primary school, there were 360 kids left at the kindergarten. What was the percentage decrease in the number of kids at the kindergarten?

FIND THE MEASURE OF CD

PLEASE HELP!!!!!!!!

Find the rate of change (slope) from the table below

Which is the graph of g(x)?

g(x) = StartLayout Enlarged left-brace 1st row 1st column 3, 2nd column x less-than negative 2 2nd row 1st column negative StartFraction x Over 2 EndFraction + 2, 2nd column negative 2 less-than-or-equal-to x less-than 2 3rd row 1st column 2 x minus 3, 2nd column x greater-than-or-equal-to 2 EndLayout

On a coordinate plane, a piecewise function has 3 lines. The first line starts at (negative 5, 3) and continues horizontally to (negative 2, 3). The second line has a closed circle at (negative 2, 2) and goes down to a closed circle at (2, 0). The third line has a closed circle at (2, 1) and goes up through (3, 3).

On a coordinate plane, a piecewise function has 3 connecting lines. The first line starts at (negative 5, 3) and goes horizontally to (negative 2, 3). The second line goes from (negative 2, 3) down to (2, negative 5). The third line starts at (2, negative 5) and goes up to (5, 1).

On a coordinate plane, a piecewise function has 3 lines. The first line starts at (negative 5, 3) and continues horizontally to (negative 2, 3). The second line has a closed circle at (negative 2, 2) and goes down to a closed circle at (2, 0). The third line has a closed circle at (2, negative 3) and goes up through (4, 1).

On a coordinate plane, a piecewise function has 3 connecting lines. The first line starts at (negative 5, 3) and goes horizontally to (negative 2, 3). The second line goes from (negative 2, 3) down to (2, 1). The third line starts at (2, 1) and goes up through (3, 3).

1. Which variable did you plot on the x-axis, and which variable did you plot on the y-axis? Explain why you assigned the variables in that way.
2. Write the equation of the line of best fit using the slope-intercept formula $y = mx + b$. Show all your work, including the points used to determine the slope and how the equation was determined.
3. What does the slope of the line represent within the context of your graph? What does the y-intercept represent?
4. Test the residuals of two other points to determine how well the line of best fit models the data.

I've included a picture of my graph down below I just really need number 1 and 2 at the moment but any question answered through 1 and 4 would we very appreciated :) thank you very much :D I will be reporting answers that aren't correct, silly, or unhelpful because I just really need these answers and it only allows up to 2 people to answer.

Jessica has bought 18 pounds of dog food. She feeds her dog 2/3 pounds for each meal. For how many meals will the food last?

PLEASE HELP ME! C:


;-;

If I feed my lizard every 3rd day, and I feed my snake every 7th day, then on what day would they both be fed?

Michael and Daniel are on a team together. Michael scores 5 points on his turn, but Daniel loses 5 points on his turn.

A.Model this scenario using a number line. *


B.Model this scenario using an equation.



D.Explain what the team score would be, and why.

A market sells 7 oranges for $2.45. How much will 8 oranges cost?

Amy, Dan and mike are competing in a cooking contest they all used different amounts of milk from a container holding 6 gallons of milk

* amy used 13% of the total milk in the container
* Dan used 0.14 of the total milk in the container
*mike used 0.5 gallon of the total milk in the container

who used the greatest amount of milk in the container? show your work and explain your answer in words

I just need someone to check my answers, I did all the work but I'm not sure even though I checked my work 3 times but that's not the point. (sorry I talk too much ;-;)

1. Which of the following represents a unit rate?

A. 4$-12 books.
B. 5pages-2 minutes.
C. 80beats-1 minute.
D. 72inches-2 yards.

2. A nonstop flight from Albuquerque, NM to Atlanta, GA takes 3 hours. If the plane flies a total of 1,269 miles, what is the Planes unit rate in miles per hour?

A. 3,807 mph
b. 1,266 mph
c. 432 mph
d. 423 mph

3. Three different bags of Pretzels are sold at the store. Which bag of pretzels is the best buy?
Bag A: 10 ounces for $1.10
Bag B: 12 ounces for $1.38
Bag C: 6 ounces for 0.84

A. Bag A
B. Bag B
C. Bag C
D. Bag A and Bag B are equally good values

4. Samantha types 40 words per minute. How many words can Samantha type in 8 minutes?

A. 48 words
B. 240 words
C. 320 words
D. 360 words

5. How many miles can a car travel on 15 gallons of gas if it travels 28 miles on 1 gallon of gas?

A. 43 miles
B. 270 miles
C. 405 miles
D. 420 miles

My answers:

1. D. 72inches-2 yards
Reason: I kinda guessed on this one

2. D. 423 mph
Reason: 3/1,269, 3 doesn't go into 1 so change that to does 3 go into 12? Yes, 4 times because 4 * 3 is 12 so put the 4 on top of the 2 and times 4 * 3 which again is 12 so 12 - 12 = 0 so then bring the 69 now and 3 goes into 69, 23 times so the answers is 423 I believe.

3. D. Bag A and Bag B are equally good values
Reason: I uh guessed on this one too because I don't have a clue what the answer is

4. C. 320 words
Reason: I timesed 40 by 8, 8 times 0 is 0, 8 times 4 is 32 put the so the answer is 320 I hope

5. D. 420 miles
Reason: 28 times 15, 8 times 5 is 40 so put the 0 under the 5 and put the 4 over the 2, 5 times 2 +4 is 14 so the first number is 140. put a 0 under the first 0 because we don't use that spot anymore, 1 times 8 is 8 and 1 times 2 is 2 so the second number is 280, 280 + 140 = 420. 0 + 0 = 0, 8 + 4 = 12, add the one to the hundered place so 2 + 1 + 1 = 4.

please answer wigth good explanation

Ted researched the price of airline tickets and discovered a correlation between the price of a ticket and the number of miles traveled. After recording his data on a scatter plot, he determined the equation for the line of best fit is y = 300 + 0.45x. What does 300 represent in the equation?

A: the number of miles traveled at 0.45 per mile

B: the maximum number of miles allowed at 0.45 per mile

C: the cost of the ticket when the number of miles equal 0

D: the cost of the ticket when the number of miles equal 45

A cereal packaging machine can fill ​15 oz boxes at a rate of ​3 boxes every ​2 minutes. Production has scheduled ​600 lbs to be processed during each ​8 -hour shift.

hehe help, sorry for asking a lot of questions :)

Write the missing digits in each calculation so that the value of each sum or difference is correct.

Please help me this, this is really important.

Help me with this math plz

WILL GIVE BRAINLY!
Find the sum.
9four-fifths + 8one-half
A. 16The term shows 5 over 14.
B. 16start fraction 3 over 10 end fraction
C. 18start fraction 3 over 10 end fraction
D. 16start fraction 2 over 15 end fraction

evaluate the inequality below and select the correct solution -9x + 3 -2
A. x > -2
B. x -6
D. x < -6

Independent Practice; Problem Solving help please!