Answer: The cost equation is:
C(x) = $25 + $55*x
Explanation:
I suppose that you want to find the equation for this situation.
We know that the price is $60 per hour, plus a single deposit of $25.
Then if Alicia rents the ski for x hours, the cost will be:
C(x) = $25 + $60*x
But she also has a discount of $5 per hour, then if she uses the coupon the total cost for x hours will be:
C(x) = $25 + $60*x - $5*x
C(x) = $25 + $55*x