Please help pls​

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)

Celeste wants to have her hair cut and permed and also go to lunch. she knows she will need $50. the perm cost twice as much as her haircut and she needs $5 for lunch. how much does the perm cost?