To determine the cost per game, we can divide the total amount paid by the number of games played by each person.
For Terry:
- Paid: $22.50
- Games bowled: 3
Cost per game for Terry: \[ \text{Cost per game} = \frac{\text{Total Paid}}{\text{Number of Games}} = \frac{22.50}{3} = 7.50 \] So, Terry paid $7.50 per game.
For Tommy:
- Paid: $15
- Games bowled: 2
Cost per game for Tommy: \[ \text{Cost per game} = \frac{15}{2} = 7.50 \] So, Tommy also paid $7.50 per game.
Conclusion: The cost of each game is $7.50 per game.