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How did presidential reconstruction allow black codes to be passed

Thoreau’s actions in civil disobedience and the 1955 bus boycott are similar because both thoreau and the boycotters were

Which is relatively better: a score of 76 on a psychology test or a score of 22 on an economics test? scores on the psychology test have a mean of 90 and a standard deviation of 13. scores on the economics test have a mean of 52 and a standard deviation of 10.