Question

Alicia runs a small business mowing yards in the summer. for every yard she mows, she earns $40. however, she spends part of this money on gasoline for her lawnmower. each gallon of gasoline costs$3. write an expression for the amount of money that alicia earns in a day, where y is the number of yards she mows and g is the number of gallons of gasoline she buys.

1. thienhuong
An expression for the amount of money that Alicia earns in a day is 40y-3g.
Given that, Alicia runs a small business mowing yards in the summer. For every yard she mows, she earns $40. However, she spends part of this money on gasoline for her lawnmower. Each gallon of gasoline costs$3.
We need to find an expression for the given situation.

### What is an expression?

In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.
Now, expression =40y-3g
Therefore, an expression for the amount of money that Alicia earns in a day is 40y-3g.