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 charged $21. which equation represents the cost, c(x), of the ice skating as a function of x, the number of hours of skating.

Step-by-step explanation:

Rent of skates for day =$3

Gillian rented skates and skated for 3 hours and charged $21.

So, Total charge including rent = 21

So , Total charge excluding rent = 21-3=$18

So, charge for 3 hours = 18

So, Charge for 1 hour =

So, cost for x hours = 6x

So, total cost for x hours including rent = 6x +3

Let C(x) denotes the total cost

So,

Hence The equation represents the cost, c(x), of the ice skating as a function of x, the number of hours of skating is

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.

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