12 times 15 my calculator said it was 160

Graph the equation by plotting point 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

What is the solution to the system of equation graphed belowa.(0,-4)b.(2,5),1),-3)