What number is a reasonable estimate for 8,246 x 4?

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)

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?

Find the rate of change for the situation.you run 7 miles in one hour and 21 miles in three hours.