Question

A pest control company sprays insecticide around the perimeter of a 100 ft by 120 ft building. If the spray costs $0.10 per foot, how much did the job cost to the nearest dollar?

Answer 1

To answer, it is assumed that the building is rectangular so that the perimeter is twice the sum of the dimensions given.
Perimeter = 2 x (length + width)
= 2 x (120 ft + 100 ft) = 440 ft
We multiply this by the given cost per foot to determine the total cost of the job.
Total cost = (440 ft)($0.10/ft)
= $44
Thus, the answer is $44.