CAN SOMEONE HELP WITH THIS PWEASE

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

Tom drove 206 miles in 3.9 hours. estimate his average speed.

The functions f(x) and g(x) are shown in the graph f(x)=x^2 what is g(x) ?