I NEED HELP

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.