You and your friends Jamal and Carla decide to make some money during summer vacation by building and selling dog houses. To get the business started, Jamal contributes $25.55, and Carla contributes $34.45 to buy equipment and materials. You all agree that each person w earn the same amount of money after Jamal and Carla get back what they invested. Your business earns a total of $450. 1. Draw a bar model to represent this situation. 2. Compare your models with your classmates' models. a. What unknown quantity or quantities are represented in the model? T b. What algebraic expressions can you write to represent different parts of the situation? ​