Answer each part. If necessary, round your answers to the nearest hundredth. (a) At Garcia's Bike Rentals, it costs $21 to rent a bike for 4 hours.
How many hours of bike use does a customer get per dollar?
30 hours per dollar
(b) Lashonda bought 18 pounds of rice for $9.
How many pounds of rice did she get per dollar?
30. pounds per dollar

Someone answer asap for ! a ball is rolled down a ramp. the height, f(x), in meters, of the ball x seconds after it is released is modeled by the function f(x) = x²- 10x + 25 for all values of x from 0 to 5. which statement about the ball is true? a. the maximum height of the ball is 5 meters b. the height of the ball increases from 0 to 5 meters above the ground. c. the ball has traveled 5 meters when it reaches the bottom of the ramp. d. the ball has been traveling for 5 seconds when it reaches the bottom of the ramp