Answer:
Based in part on his reputation for creating the cotton gin, Whitney later secured a major contract to build muskets for the U.S. government. Through this project, he promoted the idea of interchangeable parts–standardized, identical parts that made for faster assembly and easier repair of various devices.
Explanation:
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Answer:
It was the landmark sentence Brown versus Board of Education of Topeka. Unanimously, the Supreme Court ruled that racial segregation in public schools was unconstitutional. It was a major moment for the civil rights crusade in the USA.
Explanation:
5 and up is rounding up and 4 and below is rounding down.
example: 38 is in 5 and up, so you round up and get 40.
Answer:
200 • 4 ÷ 2 • 10 ÷ 5 = 800
Explanation:
