9. 1.1
At the arcade, Ryan, Sara, and Tim played video racing games, pinball, and
air hockey. Ryan spent $6 for 6 racing games, 2 pinball games, and 1 game of
air hockey. Sara spent $12 for 3 racing games, 4 pinball games, and 5 games
of air hockey. Tim spent $12.25 for 2 racing games, 7 pinball games, and 4
games of air hockey. How much did each of the games cost?