∠C = 180° - (∠A + ∠B) = 180° - (64° + 85°) = 180° - 149° = 31°
2-10 = -8 I'm not sure what the 5,6,7,8,9,10 means if you tell me i might be able to help you
93% of 149
10% of 149 = 14,9
93% of 149 > 90% of 149
93% of 149 > 149 - 14,9 ≈ 149-15≈134
> 134
⇒ the answer is D