Anonymous anonymous 2 years ago math : ) crystal earns $5.25 per hour mowing lawns. write a rule to describe how the amount of money m earned is a function of the number of hours h spent mowing lawns. how much does crystal earn if she works 2 hours and 15 minutes? a) m(h) = 2h + 15; $25.50 b) m(h) = h/5.25; $0.43 c) m(h) = 5.25h; $11.29 d) m(h) = 5.25h; $11.81 mathematics