Question

Roger works part time as a waiter at a pizza joint. He earns $ 9 per hour how does he earn 20 hours of work

Answer 1

If Rodger is working 20hs and gets $9 per hour you would do this:

1- $9 * 20 = $ 180 per hour
2- check work = $ 180/ 9 = 20hs
3- now that you know your answer is $180 you would say this: Rodger will earn a total of $180 if he works 20hs and gets payed $9 an hour