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Questions in Grade Middle-school

[Solved] Explain the connection between your body and a supernova.

[Solved] How do I simplify \((3^2)^{-3}\)?

[Solved] How can I write a story about the doubles plus 2 fact [5 + 7 = 12]?

[Solved] How did the constellation "Big Dipper" get its name?

[Solved] What were some of Mae Jemison's duties on board the shuttle Endeavour?

[Solved] How do volcanoes change the surface of the Earth?

[Solved] A rectangle with dimensions of 3 units by 5 units is enlarged by a scale factor of 1.4. By what percent does its area increase?

[Solved] A piece of plywood 24 inches wide is cut into strips 2.5 inches wide. How many strips of this width can be cut?

[Solved] Calculate the sum: \[ 7 \frac{7}{12} + \left( 3 \frac{1}{2} + 1 \frac{7}{8} \right) \]

[Solved] What are examples of weathering by wind?