Solve for missing angle

Pick the description of a geometric object that best matches the real world object box for a deck of card

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

Omar is going on a road trip! the car rental company offers him two types of cars. each car has a fixed price, but he also needs to consider the cost of fuel. the first car costs $90 to rent, and because of its fuel consumption rate, there's an additional cost of s0.50 per kilometer driven.