Air is blown into a spherical balloon. The formula for the volume of a sphere is V= 4/3 πr^2, where r is the radius of the sphere in centimeters. a. Find the volume when r=3 cm and r= 6cm
b. Calculate the average rate of increase of the volume as the radius increase from 3 cm to 6 cm.

Scott’s bank account showed a balance of $750 on sunday. during the next five days, he made one deposit of $140 and numerous withdrawals of $180 each. let x represent the number of withdrawals that scott made. write an inequality that can be used to find the maximum number of withdrawals that scott could have made and maintain a balance of at least $100. do not use a dollar sign ($) in your response.