Question:
The volume V (r) (in cubic meters) of a spherical balloon
Last updated: 7/17/2022

The volume V (r) (in cubic meters) of a spherical balloon with radius r meters is given by V (r)=4/3 πr². The radius W (t) (in meters) after t seconds is given by W (t)=81+3. Write a formula for the volume M (t) (in cubic meters) of the balloon after t seconds. It is not necessary to simplify.