I need help with this ignore the blank quiz

Find the midpoint m of z1=(8+5i) and z2=(12+3i)

Solve the problem by making up an equation. a man could arrive on time for an appointment if he drove the car at 40 mph; however, since he left the house 15 minutes late, he drove the car at 50 mph and arrive 3 minutes early for the appointment. how far from his house was his appointment?

Is of - 4x + 2? a. 3 b. 4 c. 6 d. 5