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Questions in Grade Middle-school

[Open]What invention brought Europe out of the Dark Ages? Who invented it and when?

[Open]60 points on the line! If you can do this paper! Only 2 questions!

[Open]What is the value of x in the equation -6x + 9 = 33?

[Open]Chris wants to triple 63.374. He says it must end in 9. Is he correct? Explain your answer.

[Open]Mid-ocean ridges normally form when tectonic plates move apart.

[Open]Solve for \( h \) in the equation \( S = 2\pi rh + \pi r^2 \).

[Open]The percent of Tom's budget he spends on different types of expenses is shown in the circle graph above. Tom's total monthly budget is $2,500. How much does he spend on groceries? - Rent is 30 percent - Other is 15 percent - Groceries is 25 percent - Savings is 30 percent

[Open]Not all lines are diagonals.

[Open]How much did a zipper cost in the 1800s?

[Open]Paige mows \(\frac{1}{6}\) acre in \(\frac{1}{4}\) hour. How many acres does Paige mow per hour? Show your work.