Mr. O'Connor had $90 to spend at a football game. He spent 31/45 on his ticket. Then, he spent 3/7 of his remaining money at the concession stand. While walking back to his seat, he saw a new hat on sale for $18. Did Mr. O'Connor have enough money left to buy the hat? Show all your work

He has $90 in total to spend

He spent (31/45) of this money on ticket

so money spent on ticket = (31/45) * 90 = 2790/45 = 62

Now money left with him is 90-62 = 28 $

Now it says that he spent (3/7) of this remaining money at concession stand

so money spent on concession stand = (3/7) * 28 = 84/7 = 12

Now money left with him = 28-12 = 16

So money left with him is $16 but hat costs for $18

So Mr. O'Connor didnt have enough moeny to buy the hat