## Intermediate Algebra (6th Edition)

$36618\rm{ft}^3$
The volume of a sphere is given by the formula $V=\frac{4}{3}\pi r^3$. The radius of Eartha is $20.6$ft. The volume is therefore $V=\frac{4}{3}\pi 20.6^3\approx 36618\rm{ft}^3$