SOLUTION: Some students want to start a business that cleans and polishes cars. It takes 1.5 hours of labor and cost $ 2.25 in supplies to clean a car. It takes 2 hours of labor and cost $1,

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Question 1154509: Some students want to start a business that cleans and polishes cars. It takes 1.5 hours of labor and cost $ 2.25 in supplies to clean a car. It takes 2 hours of labor and cost $1,5 in supplies to polish a car. The students can work a total of 120 hours 1 week. They also decide that they want to spend more than $135 per week on supplies. The students expect to make a profit of $7.75 for each car that they clean and a profit of $8.50 for each car that they polish. What is the maximum profit the students can make?
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