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4. it takes riley 4 hours to mow a lawn and 6 hours to clean a house if she doesn't want to work more than 40 hours a week. create an inequality to model this situation.

5. riley charges 20$ to move a lawn and 40$ to clean a house. she wants to make at least 200$ per week. create an equation that models this situation.

6. using the inequalities from both question 4 and 5 find at least 2 solutions to rileys system of equations.