The total cost f(x), in dollars, for renting a houseboat for x days is shown:
f(x) = 15 + 150x
what does f(15) represent?
a. the number of dollars it costs for 15 people to rent the houseboat
b. the number of houseboats that can be rented for 15 days
c. the number of dollars it costs to rent the houseboat for 15 days.
d. the number of days the houseboat can be rented for a cost of $150