he has $12.24 in his pocket.. subtract 5 dollars for admission. thats 8:24. the drink was 1.25 now he has $5.99.. if each ride was .75 cents, then you can add 75 until it reaches the limit. .75 times 7 gives you 5.25.. after he is done riding, he only has 74 cents left. he cannot go in anymore rides. so .74 cents is the answer.