Question: Catelyn has two summer jobs. Each week, she works at least 15 hours at a pet store and at least 6 hours as a nanny. She earns $10 per hour at the pet store and $8 per hours as a nanny. Catelyn wants to work no more than 30 hours and earn at least $250 per week. Let x represent the number of hours Catelyn works at the pet store in one week and y represent the number of hours she works as a nanny in one week. Write inequalities that model the four constraints in this solution.