Why did plains farming tribes normally settle in regions along rivers in eastern oklahoma?

Look at the graph. where p is price and q is quantity, what might cause a move from b to a?

Which of the following factors care of many european nations to occupy and colonize nations in southeast asia

Who were the “rough riders”? a. cuban revolutionaries who battled the spanish for independence b. a volunteer cavalry unit in the spanish-american war c. spanish generals in cuba who mistreated the civilian population d. newspaper owners who influenced public opinion by exaggerating the truth