Acity stores fresh water in a spherical tank. the tank has a radius of 32 feet. one cubic foot is approximately 7.5 gallons. if the city drains 140,000 gallons of water out of the full tank, how many gallons are left in the tank. round your answer to the nearest gallon.

There will be about 888,915 gallons of water left in the spherical tank.

First, we need to determine the volume of the tank. The volume formula for a sphere is (4/3)pi(r^3). All we have to do is input the 32 for pi and evaluate. You will have a volume of 137,189 cubic feet.

Now, multiply that by 7.5 and you will have 1,028,915 gallons of water in the tank.

Finally, just subtract the 140,000 gallons and we are at our answer.

What am i doing here. add?