Oceanside bike rental shop charges of 12 dollar fixed fee plus 9 dollars an hour for renting a bike. sally paid 48 dollars to rent a bike. how many hours did she pay to have the bike checked out?

Step-by-step explanation:

If h is the number of hours Sally rented the bike then she paid 12 dollars fixed fee plus 9*h.

Which means that she paid 12+9*h.

However she paid 48 dollars which means:

Which means that Sallly rented the bike for 4 hours

your answer would be 12