Some students want to start a business that cleans and polishes cars. It takes 1.5 hours of labor and costs $2.25 in supplies to clean a car. It takes 2 hours of labor and costs $1.50
in supplies to polish a car. The students can work a total of 120 hours in one week. They
also decide that they want to spend no more than $135 per week on supplies. The
students expect to make a profit of $7.75for each car they clean and a profit of $8.50 for
each car that they polish.
Draw a graph to represent the constraints and shade the feasible region