Ben earns $9 per hour and $6 for each delivery he makes. He wants to earn more than$155 in an 8-hour workday. What is the least number of deliveries he must make to reach his goal?
now deliveries 72+delivieries>155 deliveries=6 times number of deliveries (let's say 'd') 72+6d>155 minus 72 both sides 6d>83 divide both sides by 6 d>13.83 can't make 0.83 delivieries, round up d=14