How many names does the angle have? what are those names?
a. 3 names: z3, zstu, zuts
b. 3 names: zt, zstu, zus
c. 4 names: z3, zt, zsut, zuts
d. 4 names: z3, zt, zstu, zuts

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?