a.In the foreign exchange market, an decrease in the world demand for U.S. exports shifts the demand curve for U.S. dollars rightward/leftward. leftward

b.Flybus is a Brazilian jet airline producer. Malaysian Airlines wants to buy 25 Flybus planes, due to increased demand for world travel. As a result, the demand curve for Brazilian shifts rightward/leftward. Rightward.

c.Today, the dollar is worth 1.09 euros. Due to changes in economic conditions, people expect that the dollar will be worth 1.19 euros in the next month. This belief increases/decreases the demand for dollars. Increases.