Question 939938
From your question, you are asking for the volume of air that the ball can hold
Gibven diameter =15 inches
Radius of ball = 15/2=7.5 inches
Pi =22/7
Since the ball is a sphere,
{{{Volume of sphere = 4/3*pi*r^3}}}
Therefore, {{{volume = 4/3 * 22/7 * (15/2)^3}}}
{{{Volume = 4/3 * 22/7* 3375/81}}}
Volume = 174.6 cubic inches

QED