Please help 15 points each but beware if you use my points for no reason I'll report you

Answer:
[tex]2048~ \text{in}^3[/tex]
Step-by-step explanation:
[tex]\text{Volume,}~ V = \dfrac 43 \pi r^3 \\\\\\~~~~~~~~~~~~~~~=\dfrac 43 \times 3 \times 8^3\\\\\\~~~~~~~~~~~~~~~=4 \times 512\\\\\\~~~~~~~~~~~~~~~=2048~ \text{in}^3[/tex]