Arianna and her friend alexa are going to a carnival that has games and rides. Arianna played 6 games and went on 2 rides and spent a total of $21. 50. Alexa played 10 games and went on 7 rides and spent a total of $53. 25. Write a system of equations that could be used to determine the cost of each game and the cost of each ride. Define the variables that you use to write the system.