Answer:
D) x=9
Step-by-step explanation:
x = 2y- 5
2y = x + 5
y = (x+5) / 2
4x + 7(x+5)/2 = 85
8x + 7x + 35 = 85*2
15x + 35 = 170
15x = 170 - 35 = 135
x = 135/15 = 9
Least to Greatest: radical 13, radical 54/3, 6.8, 26/3.
If a = 11
b = 180 - 11
b = 169
answer
b = 169 degrees