Question

Mary earns $10 per hour and $5 for each delivery she makes. She wants to earn more than $140 in an 8-hour workday. What is the least number of deliveries she must make to reach her goal?

Answer 1

She must make 12 deliveries to reach her goal.
Reason is you do 10*8=80
Then take the 80 and do 140-80=60
Then you take the 60 remainder and do 60/5=12 deliveries