You earn $20 per hour doing landscape work. your total earnings depend on the amount of hours you spend landscaping.

Let's say x is the total amount of hours you spend landscaping, since you earn $20 dollars per hour while landscaping, you multiply 20 by x: 20(x). If you substitute any number as x, you will get the amount of money that person will get for working the number of hours you substituted for x.

after simplifying it i got: -36.25 as my answer. hope that !