A number is multiplied by 4, That result is added to 12. The final number is 40. What is the original number.
A. 2
B. 7
C.13
D.22

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?

Solve for x and select the correct answer

Which statement best describes how to determine whether f(x) = x squared- x +8 is an even function ?