Lizzy: Jenny had $24 left after spending 3/7 of her money. How much is half of her original amount of money?.
Me: Hmmm, let me think. I think this is the detailed solution:
Jenny spent 1 - 3 / 7 = 4 / 7 of her money. Since 4 / 7 is equal to $24, then 1 / 7 is equal to $24 / 4 = $6. So, Jenny originally had $6 x 7 = $42. Therefore, half of her original amount of money is $42 / 2 = $21. Final answer: 21.