Emma is trying to decide whether to buy a new laptop. as a student, she has a budget and wants to make sure this is the right financial decision. which question should she ask herself in determining the opportunity cost of this purchase?
a) what will i have to sacrifice if i buy this laptop?
b) can i use credit to buy this laptop?
c) do i need this laptop for my studies?
d) is there a less costly alternative to buying this laptop?

Suppose that a worker in agland can produce either 10 units of organic grain or 2 units of incense per year, and a worker in zenland can produce either 5 units of organic grain or 15 units of incense per year. there are 20 workers in agland and 10 workers in zenland. currently the two countries do not trade. agland produces and consumes 100 units of grain and 20 units of incense per year. zenland produces and consumes 50 units of grain and no incense per year. if each country made the decision to specialize in producing the good in which it has a comparative advantage, then the combined yearly output of the two countries would increase by a. 30 units of grain and 100 units of incense. b. 30 units of grain and 150 units of incense. c. 50 units of grain and 90 units of incense. d. 50 units of grain and 130 units of ince