The area of a rectangular fountain is (x^2 + 12x +20) feet squared. the width is (x + 2) feet. i solved part a (find the length of the fountain) which is (x + 10) and part b (a 2-foot walkway is built around the fountain. find the dimensions of the outside border of the walkway) which are x + 4 feet by x + 12 feet, but i'm having trouble finding the answer for part c. part c: find the total area covered by the fountain and walkway.