Marco earns $16 an hour plus $21 an hour for every hour of overtime. overtime hours are any hours more than 35 hours for the week. part a: create an equation that shows the amount of money earned, e, for working x hours in a week when there is no overtime. part b: create an equation that shows the amount of wages earned, t, for working y hours of overtime. part c: marco earned $602 in 1 week. how many hours (regular plus overtime) did he work?