Natalie has $50 to spend at the amusement park. If admission costs $24, she spends $12.50 on food, and each game is $1.25 per play, write an equation that represents her total spending, y, and x as the number of games played. Then find how many games she can play before she runs out of money.

a. y = 50 1.25x ; she can play 40 games
b. y = 1.25x + 36.50 ; she can play 10 games
c. y = 1.25x + 36.50 ; she can play 11 games
d. y = 12.50x + 50 ; she can play 4 games