A homeowner is converting a cleared plot of his land into a garden. The garden and the walkway around its perimeter have an area of 1720 ft². Using a quadratic equation, find the width of the walkway if the garden is 33 ft. wide by 36 ft. long.

33 ft 36 ft The walkway is 3.25 feet wide. The walkway is 3.5 feet wide. The walkway is 13.5 feet wide. The walkway is 14 feet wide