Use the elimination method to solve the system of equations. Choose the correct ordered pair.
4x +y = 27
5x - y =18

Arectangular prism is 3 meters long, 6 meters wide, and has a height of 9 meters. what is its surface area?

Ebuka's monthly rent is $750. if ebuka pays the rent late, his landlord charges 4% interest per week that the payment is late. write a function that gives the total cost r(t), in dollars, of ebuka's rent if he pays it t weeks late.

David leaves his house to go to school. he walks 200 meters west and 300 meters north. how far is david from his original starting point?