Final answer:
To calculate the number of hours of bike use a customer gets per dollar at Davidson's Bike Rentals, divide the cost by the number of hours. In this case, a customer gets approximately 5.33 hours of bike use per dollar.
Step-by-step explanation:
To calculate the number of hours of bike use a customer gets per dollar at Davidson's Bike Rentals, we can set up a ratio using the given information. The cost to rent a bike for 9 hours is $48. So, the ratio of hours to cost is 9 hours to $48. To find out how many hours a customer gets per dollar, we can divide the cost by the number of hours. In this case, the equation would be: $48 / 9 hours. Evaluating this, we find that a customer gets approximately 5.33 hours of bike use per dollar at Davidson's Bike Rentals.