Help need plz

Which undefined geometric term is described as a location on a coordinate plane that is designed by an ordered pair (x,y) ?

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Part a: sam rented a boat at $225 for 2 days. if he rents the same boat for 5 days, he has to pay a total rent of $480. write an equation in the standard form to represent the total rent (y) that sam has to pay for renting the boat for x days. (4 points)