What is the ideal mechanical advantage of a machine where the input distance covered is 10 meters, the downward force applied is 2 N, and the output distance is 5 meters?

Can someone show me the steps to solve the problem?

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

Using inductive reasoning, what is the next two numbers in this set? 1,-7,13,-19 i got the numbers 14,-26 is that right?