Answer:
B. 20.4°
Step-by-step explanation:
M = 9x - 12 Corresponding angles
M = 4x + 6 Vertical opposite angles
9x - 12 = 4x + 6
9x - 4x = 6 + 12
5x = 18
x = 18/5
Angle LMN = 4x + 6 = 4(18/5) + 6 = 72/5 + 6 =
14.4 + 6 = 20.4°
