The answers are A. 8 B. 15 C.24 D. 60 please I need help ?

Which of the following system of equation is not equal to the system of equations is not equal to the system of equations shown below

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer

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