There will be 18 exterior angles, each of 360/18 = 20 deg. So each interior angle, which is supplementary to the exterior angle will be 180–20 - 160 deg. The sum of the 18 interior angles = 18*160 = 2880 deg.
Answer:
Leonardo emiliano Castañeda angeles
-8(-4) + y = 37
32 + y = 37
y = 5
when x = -4, y = 5
-2a if you're Simplifying it and 2\5 if you're going for a decimal
