A moon of mass m and radius a is orbiting a planet of mass m and of radius b at a distance d (center-to-center) in a circular orbit.

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 authors use the word “backbone” in lines 3 and 39 to indicate that

Arecipe calls for 2 cups of flour to make a cake. you look in the stock room and see a bag of flour that has a tag that says this bag contains 25 cups of flour. how many complete cakes could you make from this bag of flour?