The volume of air inside a rubber ball with radius r can be found using the function V of r is equal to 4 thirds pi r cubed What does V of 5 sevenths represent?

In the function V(r), the input r is the ball’s radius, and the output V(r) is its volume. So V(5/7) means the volume when the radius is 5/7 feet. It does not say the volume is 5/7 cubic feet; that would reverse the input and output.

AI-written and checked against the verified answer.