Answer: 300 slaves
Explanation: Harriet Tubman is perhaps the most well-known of all the Underground Railroad's "conductors." During a ten-year span she made 19 trips into the South and escorted over 300 slaves to freedom.
Another crucial development was the use of a steel frame instead of stone or brick, otherwise the walls on the lower floors on a tall building would be too thick to be practical. ... Further developments led to the world's first skyscraper<span>, the ten-story Home Insurance Building in Chicago, </span>built<span> in 1884–1885.</span>
<span>Why did many Americans have more time for entertainment?</span>
Because the U.S. had wanted to trade, but I believed the sovient refused. Or they wanted war, but U.S.A refused
<u>Answer:</u>
<em>Reserved powers
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<u>Explanation:</u>
Concurrent powers are forces delighted in by both the state and national governments. These forces might be practiced at the same time, in similar territory, and among a similar gathering of natives. For example, inhabitants of most states are to pay both government and state charges.
Concurrent powers accommodate the necessities at each degree of government to guard individuals, deflect crimes, bolster the economy, and avoid and rebuff criminal conduct. To investigate this idea, think about the accompanying simultaneous forces definition.
