What were the causes of the Supreme Court case Dred Scott v. Sanford?

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.

What was the significance of john hancock's signature on the declaration of independence?

What is the supreme law of the land? the declaration of independence the federalist papers the articles of confederation the constitution