87/0 because they are equal.
answer: 8
i added all the numbers and divided them by how much numbers there are
Area: make it two rectangles:
13 x 6 and 5 x 7
Area = 113 square m
Perimeter = 13 + 6+8+7+5+13 = 52 m
-13<w because 9*w and 9*3 = 90>-9w-27 then add 27 and get 117>-9w then divide and get -13<w