peter earns $9 each hour for the first 40 hours he work each week for every hour he works after 40 hours he earns $12 each hour last week peter earned $444
Peter makes $9 per hour up to 40 hours so $9 X 40 is 360 for the week. Take that away from the $444 he made that week and you have $84 left that was overtime at $12/hour. Divide 84 by 12 and you can see how many hours of overtime he worked.
