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What was the overall impact of eli whitneys introduction of interchangeable parts?

How did president wilson compensate for the reduced government income resulting from his lowering of tariffs? a. he taxed businesses b. he charged federal interest on loans c. he cut government expenses d. he created an income tax

Hitler hoped the threat of would deter the u. s. from entering the war. a. japanb. genocide c. nuclear war d. war on two fronts