Does anyone know how to solve it?

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

The graph of g(x) is a translation of y = which equation represents g(x)?

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