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Answer:
Automobiles
Explanation:
The expansion of credit in the 1920's allowed for the sale of more consumers goods and put automobiles within reach of average Americans.
Answer:
assembly line
Explanation:
The assembly line sped up the manufacturing process dramatically. It allowed factories to churn out products at a remarkable rate, and also managed to reduce labor hours necessary to complete a product—benefiting many workers who used to spend 10 to 12 hours a day in the factory trying to meet quotas.