Kayla and Josel produce food and luxury goods. Kayla has 10 hours; it takes her 1 hour to produce 1 unit of food and 2 hours to produce 1 unit of luxury goods. Josel has 20 hours; for the first 8 hours of producing food, it takes him 2 hours to produce 1 unit of food. Then, beyond 8 hours, Josel is less productive and it takes him 4 hours to produce 1 additional unit of food. It takes Josel 2 hours to produce 1 unit of luxury goods no matter how many hours are allocated into the production of luxury goods