The function models the total cost , in dollars, of renting a small boat for hours. Which of the following is the best interpretation of the statement "" in this context?
The boat was rented for 56 hours at a total cost of $4.
The boat was rented for 4 hours at a total cost of $56.
The boat was rented for 4 hours at a cost of $12 per hour.
The boat was rented for 56 hours at a cost of $12 per hour.