Jackson's Presidency Which of the following were new inventions or developments that contributed to the nation's economic
expansion in the early 1800s? Check all of the boxes that apply.
steamships
cotton gin
McCormick reaper
Erie Canal
spoils system

pennsylvania, new hampshire, massachusetts, connecticut and rhode island .

speed =5445/33=165 mpm

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b. young children below the minimum age were working