Rania is playing with her friend Arun, and they are setting dominoes across the room. Each domino is 2 inches long. They have al
ready placed 10 dominoes in a row. The room is 10 feet long and they want to know how many more dominoes they can set up before they reach all the way across the room. Does the inequality 2d + 20 < 120 model this situation? Explain why or why not.
