Thelma and Laura start a lawn-mowing business and buy a lawnmower for $225. They plan to charge $15 to mow one lawn. What is the minimum number of lawns they need to mow if they wish to earn a profit of at least $750?
Jul 20, 2017
The profit will be given as:
(where we subtracted the cost of the mower) so that
We need to solve: