Answer:
B
Step-by-step explanation:
Vertical angles are congruent
m < ABY = m < ZBU
Substitute in their known values
(3x - 5)° = (2x + 40)°
Add 5° to both sides of the equation
3x = 2x + 45°
Subtract 2x from both sides of the equation
x = 45°
B
Hope this helps :)
