Volume of a sphere?

A solid plastic ball is a sphere with radius 4 in. How much plastic does it take to make one ball? Use 3.14 for π.

Solve for x: 2x + 12 = 64

Jeff has ten packages that he wants to mail. Nun identical packages weigh 2 7/8 pounds each. A tenth package weighs two times as much of one the nine packages. How many ponds do all packages weigh?

Is the area always bigger than the perimeter

Which of the following expressions has the greatest value? A 3 - 7 + (-10) B 3 + 7 + (-10) C 3 + 7 - (-10) D 3 - 7 - (-10)

2x+23+67=22+73-11 Solve for x

What is the result of a division problem

You get a 15% raise at you job and now make $13.50 per hour. What was you previous rate of pay per hour.

For which data set is a linear regression most reasonable? A. a set of nine data pairs with a correlation coefficient r = - 0.4 B. a set of five data pairs with a correlation coefficient r = 0.3 C.

Change 1 2/20 to a percent

What s the domain of f (x) = 3x-2