Sara paid for 4 hours to have the bike checked out
Solution:
Oceanside bike rental shop charges 17 dollars plus 9 dollars an hour for renting a bike
Let "x" be the number of hours rented
Then, total cost is 17 dollars plus 9 dollars for "x" hours
Thus, we frame a equation as:
Total cost = 17 + 9(number of years)
Total cost = 17 + 9x
Sara paid 53 dollars to rent a bike
Therefore, total cost = 53

Thus sara paid for 4 hours to have the bike checked out