There are some five-dollar and two-dollar bills. The value of all the notes is $23. If there are 4 two-dollar notes, how many five-dollar notes are there?
+591 if there are 4 two dollar notes, that means there are 8 dollars the are made up of two dolar notes. so 23-8=15, which is the total of the 5 dollar notes, so 15/5=$\boxed3$ five dollar notes
