Question

Don’t even know help??????????

Answer 1

x = 5

m∠A = 85°

Explanation:

15x + 10 + 3x + 15 + 15x - 10 = 180

15x + 3x + 15x = 180 - 10 - 15 + 10

33x = 165

x = 165/33

x = 5

m∠A = 15*5 + 10 = 85°