How did Captain of Industry or Robber Barons use monopoly to wipe out competition?

This law states that the "chinese laborers to this country endanger the good order of certain localities" in the united states. which of these would represent a "locality" that would most likely have wanted this law created and passed? a) dallas b) chicago c) atlanta d) san francisco

Articles of confederation dbq assignment. was the poster ”announcing an all new plan of government! ” written by a federalist or a non federalist?

This map shows north korea and south korea today. how does this map reflect the impact of the korean war?