Answer :

JPiv
volume of a sphere is calculated using a formula:
[tex] \frac{4}{3} \pi * r^{3} [/tex]

so in this case:

[tex] \frac{4}{3} \pi * 9^{3}[/tex]

and taht is:

[tex] \frac{4}{3} \pi *729 [/tex]
[tex]= 972 \pi [/tex]

Hope it helps you! :)
tomek1172
[tex]V=\frac43 \pi r^3\\ r=9m\\ \\ V=\frac43 \pi 9^3=\frac43 \cdot 729\pi=972\pi[/tex]