This is fairly easy once you have the formula, the formula for the volume of a sphere is
[tex] \frac{4}{3} \times \pi \times {r}^{3} [/tex]
(or substitute PI with 3.14)
Here is your formula with the plugged in numbers
[tex] \frac{4}{3} \times 3.14 \times {7}^{3} [/tex]
This all equals 1,436 cubic units
