Answer:
-Well we have to identify what is going on in this problem. 
-She has 20 dollars to spend but she wants to find the maximum amount of games she can play. 
-The rent of the shoes and the meal is a one time fee. 
So we can add those up
3.5 + 7.5 = 11
We know that it’s 2.75 per game (g) 
11 + 2.75g ≤ 20
you then solve for g
11 + 2.75g ≤ 20 
2.75g ≤ 9 
you’d get a decimal but we only need the whole number since you can’t play 0.1 or 0.2 etc. of a game
The answer would be 3