You are landscaping your backyard and want to fertilize the lawn. Home Depot sells supergreen lawn fertilizer in 15-lb bags and each bag cost $16.11 (tax included). Each 15 -lb bag is estimated to cover about 3,500 square feet. Your lawn is 1/3 of an acre. How much will it cost to fertilize your lawn? Assume you cannot purchase partial bags. You have to purchase whole bags. (Helpful hint: 1 acre is 43,560 square feet)