How do h multiply mixed numbers the easier way

What is the pattern in the values as the exponents increase?

Which point is a solution to the inequality shown in this graph (-3,-3)(3,-1)

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