Number 2 is 20 number 3 is 11
If Dave has 15 dollars and must spend 8 dollars of it on a book, then he will have 7 dollars left. If he then buys two of the same cards for his friends, the most he will be able to spend is half of 7 dollars for each of them, which will be 3 dollars and 50 cents.
Is that all the question says can you give it into more details
So I can help you out
Well its
900+0+0
basically
like if it was
9,234
then it would be
9000+200+30+4
