Apest 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?

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.