Question 1163541
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Let's say that 10 days pass by.


If Nat spents $100 a day, and runs out of money at the end of 10 days, then she has 100*10 = 1000 dollars total.


If she spends 50 dollars a day, then 50*10 = 500 is the amount she spends over the same duration of time. She doesn't spend all her money here. It seems like your teacher made a typo somewhere. 


There is no way Nat spends all her money if she spends half as much and the duration of time is the same. I would ask your teacher about this.
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