Preview: ... 2y=2 and y=1 are the same line. Part II: Greener Lawns C=$200 + 50h; Lawns for Less C=$300 + 25h 200+50h = 300+25h 25h=100 h=4; both plans cost the same if you use the company for 4 hours. If you use them for less than 4 hours you should go with Greener Lawns because they cost less. If you use them for more than 4 hours you should go with Lawns for Less because ...

...because they cost less, due to the lower hourly charge.