What is the volume
if the radius of
the balloon is
3.5 inches?

If a baseball player hits a baseball from 4 feet off the ground with an initial velocity of 64 feet per second, how long will it take the baseball to hit the ground? use the equation h = −16t2 + 64t + 4.

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

Solve the triangle. a = 21°, c = 105°, c = 5