Shonte gets paid $7.50 an hour when she works at the shoe store. She also gets paid $4.00 an hour to babysit her children in her neighborhood. How many hours a day, x, can Shonte spend working at the shoe store and how many hours a day, y, can Shonte spend babysitting if she wants to earn at least $32 per day and work no more than 8 hours per day?