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Questions in Grade Middle-school

[Open]What measures the radiation given off by Earth?

[Open]A bacterial culture starts with 3,000 bacteria and increases to 48,000 after 3 hours. Find the doubling time.

[Open]What is continental polar?

[Open]A bank paid 2.3% interest on a money market account. What is 2.3% written as a decimal?

[Open]Three coins are tossed, and the number of heads observed is recorded. (a) Find the probability for 0 heads. (Give your answer as a fraction.)

[Open]How did Rome contribute to the development of world languages?

[Open]What are some character traits of Dolley Madison?

[Open]Find three equivalent ratios to \( \frac{10}{3} \).

[Open]How many quarts are there in 26 gallons?

[Open]What are mid-ocean ridges? A. Found in all of Earth's oceans B. Found only in the Pacific Ocean C. Located mostly along coastlines D. Long, deep ocean trenches