You want to put a 6 inch thick layer of topsoil for a new 17 ft by 23 ft garden. The dirt store sells by the cubic yards. How many cubic yards will you need to order?

Answer 1

6 inches = 1/2 foot = 0.5 feet

The volume needed is V= 0.5 * 17 * 23 = 195.5 cubic feet

1 cubic yard = 3*3*3 cubic feet = 27 cubic feet

195.5 / 27 = 7.2407 cubic yards