paul earns 25.50 for every lawn he mows. this week he moved L lawns. he spends 3.50 per lawn on gasoline. write an expression to describe his earning and spending, where L is the number of lawns mowed?
If Paul mows the lawn once, he earns 1*25.50. If he mows it twice, he earns 2*25.50, and so on. So, he earns L*25.50. But, he spends 3.50. So the equation is:
