Which expression is equivalent to 3 (s+7) ?

21s

10s

3s+21

21s+3

A Principal needs 2 chaperones for every 25 students at the school dance how many chaperones does he need if 225 students are expected to be at the dance

What are angles that are equal called?

northc04 just want to say happy mother's day i hope you say it to all your mom's they all love you no matter what if they are dead or alive they are still in your heart's hope you say it to every woman say it to you grandma even a person you see at

A bag contains 8 white, 4 red, 7 green, and 5 blue marbles. Eight marbels are withdrawn randomly. How many withdrawn marbles were white if the chance of withdrawing a white marble is now 1/4?

Karolyn is arranging her art project, science project, and math project on her desk. The tree diagram below shows the sample space. A tree diagram is shown. The first three choices are art, science, and math.

A hybrid car averages 609 miles on a 12.5 gallon tank of gas. Manuel is planning a 1290 - mile vacation in his hybrid car. Find how many gallons of gas he can expect to burn.

I'm subtract 9 and 11

A road cree must repave a road that is 3/8 miles long. They can repave 1/48 miles each hour. How long will it take the crew to repave road

10% in hours equals what

What is the a-value in the following quadratic equation? y=-x^2+x-20 Find the value