Final answer:
To model this situation, we can use the equation 4g + $12 = $28, where g represents the cost for one game.
Step-by-step explanation:
To model this situation, we can let g represent the cost for one game. We know that there are four friends, so the total cost for the games would be 4g. Additionally, each friend pays $3 to rent shoes, so the total cost for renting shoes would be 4 * $3 = $12. The total cost for the games and renting shoes combined is $28. We can create an equation to represent this: 4g + $12 = $28. This equation models the situation and allows us to solve for g, the cost for one game.