Please help with this problem whoever answers then sends me a friend request will get brainliest for life

What are economic systems and how do they differ?

Before the civil war, the south’s economy was based on enslaved labor. large cities. immigrant workers. factories.

Which action by the us war department angered chief red cloud to the point that he refused to sign the treaty of fort laramie ? a) the killing of buffalo by the united states troops b) the appointment of troops to the powder river basin c) the burning of parts of the powder river basin d) the murder of chief red cloud’s wife