The length of a rectangular fence enclosure is 12 feet more than the width the perimeter is 100 feet so what are the dimensions

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online

I’m stuck on this equation, anyone got the answer?

Solve this problem! extra ! 3025/5.5 = a/90.75 / = fraction