(Angle Relationships HC)

Angles LMN and OMP have the following measures:

m∠LMN = (x + 12)°, m∠OMP = (4x − 7)°

Part A: If angle LMN and angle OMP are complementary angles, find the value of x. Show every step of your work. (4 points)
PLEASE HELP ME
Part B: Use the value of x from Part A to find the measures of angles LMN and OMP. Show every step of your work. (4 points)

Part C: Could the angles also be vertical angles? Explain. (4 points)