What is the mole fraction of o2 in the mixture? atm what is the mole fraction of ar in the mixture? atm.

2(4p+1)/5< = (3+12p)/4 its less than or equal solve it for me an with explanation plz

Which of these international trade concepts results in specialization and trade increases in total world output? a) absolute advantage b) balance of payments c) absolute advantage d) international tariffs

The author believes that the concept of fairness is not a useful term