If x is the average (arithmetic mean) of m and 9, y is the average of 2m and 15, and z is the average of 3m and 18, what is the average of x, y, and z in terms of m?

You call the pizza store and find out that eachpizza has 12 slices. you expect 16 people tocome, and you estimate each person will eat 3slices. how many pizzas should you order

In the geometric progression –3, 12, −48… what term is 3,072?

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way