20 students in a classroom and only 4 chairs how many ways can the chairs be filled

Salma has 6 CDs that she is going to give away. She lets her best friend choose 2 of the 6 CDs. How many different groups of 2 CDs are possible?

Find the inverse of f (x) = 10-3x

What is the fourth factor of 1, 2 and 10?

A store buys 77 1/2 pounds of mulch. They divide the mulch up into bags that can each hold 2 1/4 pounds of mulch. The store sells each bag for 2.25$.

Express each number as a product of its prime factors 250

Jerry drew an obtuse angle. Which could be the measure of his angle?

A library charges a late return fee of 3.50 plus $0.15 per day that a book is returned late write a equation to find the total late fee f for any numbers of days late d

What is the product of 45.67 x 32.58?

If you apply the changes below to the linear parent function f (x) = x what is the equation of the new function vertically compress by 1/4 over the y-axis

A science class measured the mass of a balloon to be 4 grams. After the balloon was inflated the mass was 8 grams. What was the mass of the air inside the inflated balloon?