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Questions in Grade Middle-school

[Open]What is \( 10xy^2 + 5x - 4y^3 + 6 - x + 5x^2y + 6xy^2 - 2 \)?

[Open]What does 5.2E11 mean on a calculator?

[Open]Mr. Castle shares 80 marbles between Emily and Asif in the ratio of 7:1. How many marbles will each child get?

[Open]Give an example of an oxidation reaction that can be a nuisance.

[Open]Which word from the paragraph best helps the reader understand the meaning of the underlined word? The man found out the hard way that it pays to be _courteous_ to the staff at the cafe. He was rude when he complained about not having enough ice in his water. So, his next glass was so full of ice he could scarcely drink it. He remembered to be kind when asking for something after that. A. full B. hard C. enough D. kind

[Open]Describe words for the word "sand."

[Open]Convert [tex]\frac{63}{11}[/tex] into a mixed number in simplest form.

[Open]How do you convert fractions into decimals and percentages?

[Open]Suppose that in a lab you could remove all the oxygen from a terrarium. What would happen to the plants? Why?

[Open]Mary filled a water cooler with \(6 \frac{1}{2}\) gallons of water. She forgot to close the plug, and \(2 \frac{5}{6}\) gallons leaked out. How many gallons of water remain in the cooler?