Pls help WILL GIVE BRAINLIeST

The parabola opens: y=√x-4 (principal square root) up down right left

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

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are: