Can someone write an algebraic expression for the statement. (Use x as your variable) The difference of four times a number and 13

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

Which point is a solution to y s 4x + 5?

Graph the line with the given slope m and y-intercept b. m=-3,b=1