The length of a rectangle is 3 less than 4 times the width. the perimeter is 34. find the length and width of the rectangle

Length (L): 4w - 3

width (w): w

Perimeter (P) = 2L + 2w

                 34 = 2(4w - 3) + 2(w)

                 34 = 8w - 6 + 2w

                 34 = 10w - 6

                 40 = 10w

                   4 = w

Length (L): 4w - 3   = 4(4) - 3   = 16 - 3   = 13

width=4, length = 13

the answer is (4,3)

since the rule for r0, 90º is (-y,x) and it was already applied to form the image, all you have to do is reverse the answer using this formula.