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Questions in Grade Middle-school

[Done] Is \(-n\) always, sometimes, or never a positive number? Explain.

[Done] Express 91,007,500 in scientific notation using positive powers of 10.

[Done] The fastest a human has ever run is 27 miles per hour. How many miles per minute did the human run?

[Done] Is the square root of 2 between 1.3 and 1.4? How do you know?

[Done] Why were Native Americans who practiced agriculture more likely than hunter-gatherers to establish permanent homes?

[Done] How was King James I important to the survival of the Jamestown settlers?

[Done] Tasha believes that she can rewrite the difference \(120 - 36\) as a product of the GCF of the two numbers and another difference. Is she correct?

[Done] What are the two largest ethnic groups in the United States today?

[Done] If every positive number has two square roots, and you can find the length of the side of a square window by finding a square root of the area, why is there only one answer for the length of a side?

[Done] kilo- = 1,000 deka- = 10 How much larger is a kilo- than a deka-?