How did the byzantine empire expand and contract over time

During the cold war, which of the following groups of countries would have all been"behind the iron curtain"

Which is the main inference that can be drawn from adam smith's book the wealth of nations? a) for an economy to work flawlessly, it shouldn't have to serve and moral goals.b) the government must control a free-market economy, or economic problems will arise.c) a free-market economy works well only without the government's interference. d) free trade will only hurt economies and should be stopped by governments.

How was george washington able to defeat the british in the battle of trenton and princeton