The answer is: positive 61.
Answer:
150
Step-by-step explanation:
Each interior angle in a polygon is (n-2)×180 ÷n
(12-2)×180/12

(7^5 * 7^3)^4 * 7^-2 / 7^-7 * 7^20
= (7^8)^4 * 7^-2 / 7^(-7 + 20)
= 7^32 * 7^-2 / 7^13
= 7^(32 - 2) / 7^13
= 7^30 / 7^13
= 7^(30 - 13)
= 7^17
150/3=50
So I would go with D
I hoped I helped:)