geometry
posted by christina .
a spherical water storage tank has a radius of 10ft. A cubic foot of water is about 7.5 gallons. How many gallons of water will the tank hold?

V = (4/3) * pi * r^3
V = (4/3) * 3.14 * 1000
V = (4/3) * 3140
V = 12,560 / 3
V = 4186.6667 cubic feet
Divide the volume by 7.5