Geometry skew lines!! Need help thank you ☺️

The variable in a relation who’s value depends on the value of the independent variable is called what?

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

It says factor each expression completely 8y+48