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

c(x) = 3 + 6x

Step-by-step explanation:

Let us assume that the ice skating rink class charges an hourly fee of $R for skating and $3 to rent skates for the day.

Now, Gillian rented skates and skates for 3 hours and was charged $21.

So, 3 + 3R = 21

⇒ 3R = 18

⇒ R = $6  per hour

Therefore, the equation represents the cost, c(x), of ice skating as a function of x. the number of hours of skating will be  

c(x) = 3 + 6x (Answer)

-4

step-by-step explanation:

(-4+8)=-(4-8)=-8+4=-4