How important of a role did knights play in the feudal system?

Which perminant civil rights leader would have disagreed most with washington's approach to solving the problem of racial inequality in the south?

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What does it mean to say that "service sector" jobs are predominant in europe's mixed economies today? a. that jobs where people work in factories predominate b. that jobs where people do something for others predominate c. that jobs where people work the land predominate d. that jobs in government predominate