Suppose Lindsay and Taylor are doing Chemistry and Psychology homework. In one hour, Lindsay can solve 10 Chemistry questions and 0 Psychology questions, or 20 Psychology questions and 0 Chemistry questions, or any other linear combination lying on the line between those two points. In the same amount of time, Taylor can solve 20 Chemistry questions and 0 Psychology questions, or 30 Psychology questions and 0 Chemistry questions, or any other linear combination lying on the line between those two points.

1. What is the opportunity cost of solving 1 Psychology question for Lindsay? What is the opportunity cost of solving 1 Psychology question for Taylor?
2. What is the opportunity cost of solving 1 Chemistry question for Lindsay? What is the opportunity cost of solving 1 Chemistry question for Taylor?
3. Who has the absolute advantage in doing Chemistry homework? Who has the absolute advantage in doing Psychology homework?
4. Suppose that Taylor and Lindsay work together. Who will specialize in solving Chemistry problems and who will specialize in solving Psychology problems?
5. If they were to trade with each other, what is the price range (in terms of the number of solved Psychology problems) acceptable to both Lindsay and Taylor for a solved Chemistry question?