The ice skating rink charges an hourly fee for skating and $3 to rent skates for the day. gillian rented skates and skated for 3 hours and was charged $21. which equation represents the cost, c(x), of ice skating as a function of x, the number of hours of skating?
c(x) = 3x + 3
c(x) = 6x + 3
c(x) = 7x + 3
c(x) = 8x + 3

Step-by-step explanation:

Given: The fixed cost charged by ice skating rink  = $3

The total charge of renting skates for 3 hours =$21

Let the hourly fee of skates for be 'c', then we have the following equation:-

Hence, the hourly fee for skating = $6

Let the number of hours of skating represented by x, then we have the following equation  represents the cost, c(x) is given by :