关于一个英文经济学问题,有把握的进哦Pat and Kris are roommates.They spend most of their time studying,but they leave some time for their favorite activities:making pizza and brewing root beer.Pat takes 4 hours to brew a gallon of root beer and 2 hours to make a pizza.Kris takes 6 hours to brew a gallon of root beer and 4 hours to make a pizza.a.What is each roommate’s opportunity cost of making a pizza?Who has the absolute advantage in making pizza?Who has the comparat

关于一个英文经济学问题,有把握的进哦
Pat and Kris are roommates.They spend most of their time studying,but they leave some time for their favorite activities:making pizza and brewing root beer.Pat takes 4 hours to brew a gallon of root beer and 2 hours to make a pizza.Kris takes 6 hours to brew a gallon of root beer and 4 hours to make a pizza.
a.What is each roommate’s opportunity cost of making a pizza?Who has the absolute advantage in making pizza?Who has the comparative advantage in making pizza?
b.If Pat and Kris trade foods with each other,who will trade away pizza in exchange for root beer?
c.The price of pizza can be expressed in terms of gallons of root beer.What is the highest price at which pizza can be traded that would make both roommates better off?What is the lowest price?Explain.
I just can't solve the question C,thanks