To find the cost per game for Terry and Tommy, we need to divide the total amount they each paid by the number of games they bowled.
For Terry:
- Total paid: $22.50
- Games bowled: 3
Cost per game for Terry: \[ \text{Cost per game} = \frac{\text{Total paid}}{\text{Games bowled}} = \frac{22.50}{3} = 7.50 \]
For Tommy:
- Total paid: $15
- Games bowled: 2
Cost per game for Tommy: \[ \text{Cost per game} = \frac{\text{Total paid}}{\text{Games bowled}} = \frac{15}{2} = 7.50 \]
Both Terry and Tommy paid the same rate of $7.50 per game.
Thus, the cost per game is $7.50 per game.