Morgan is planning to run a small lawn care business this summer. He can rent a ride-on lawn tractor for $740 per month. He estimates that it will cost $5 in gasoline to cut the average lawn, and he intends to charge a flat rate of $25 per lawn.

a. What is the contribution rate that Morgan's business is expected to generate? Contribution rate 

b. What is Morgan's break-even level of revenue per month? Break-even revenue $ per month 

c. How many lawns per month must Morgan cut in order to break even? Breakeven point lawns per month