Maria and Simone are roommates. They spend most of their time studying (of course), but they leave some time for their favorite activities: making pizza and brewing root beer. Maria takes 4 hours to brew a gallon of root beer and 2 hours to make a pizza. Simone takes 6 hours to brew a gallon of root beer and 4 hours to make a pizza.

Maria's opportunity cost of making a pizza is______ of root beer, and Simone's opportunity cost of making a pizza is________ of root beer.

__________ has an absolute advantage in making pizza, and__________ has a comparative advantage in making pizza.

If Maria and Simone trade foods with each other,_____ will trade away pizza in exchange for root beer.

The price of pizza can be expressed in terms of gallons of root beer. The highest price at which pizza can be traded that would make both roommates better off is______ of root beer, and the lowest price that makes both roommates better off is_______ of root beer per pizza.