What is the total surface area of this rectangular prism?

Restrictions on f(x) = 1/x+5 and g(x) = x-2

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

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)