Hello!
[tex]\large\boxed{3154.0 ft^{3}}[/tex]
Use the equation of the volume of a sphere:
[tex]V = \frac{4}{3}\pi r^{3}[/tex]
Substitute in the given radius:
[tex]V = \frac{4}{3}\pi (9.1)^{3}\\\\V = 753.571(\frac{4}{3} \pi )\\\\V = 1004.76\pi \text{ or } 3154.95 ft^{3}[/tex]
Round to the tenths place:
[tex]3154.0 ft^{3}[/tex]
