Answer:
The question is telling you Salim has 5-dollar bills and the amount of those 5-dollar bills is 9 so you multiply 5×9=45
Explanation:
5-dollar bills represents how much money one dollar bill is worth
9 represents the amount of 5-dollar bills Salim has
To know the amount of money Salim has you put the amount of money per bill which is 5 and multiply it by the amount of bills Salim has which is 9
(5×9=45)