Answer:
y = 0.008x^2 + 0.518x + 131.886
Step-by-step explanation:
(credit: CPM Educational Program)
The sum of any 360-gon's interior angles is 64440 degrees.
x = 12
Supplementary angles, sum = 180
10x - 20 + 6x + 8 = 180
16x - 12 = 180
16x = 192
A. 55