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Questions in Grade Middle-school

[Answered] How did geographic challenges lead to the rise of city-states in Mesopotamia?

[Answered] Round 63,849 to the nearest: - Ten - Hundred - Thousand - Ten thousand

[Answered] Simplify the expression: \((-3x - 7) + (4x + 7)\)

[Answered] What is 7,782 rounded to the nearest hundred?

[Answered] Round 43.586 to the nearest tenth, hundredth, and whole number.

[Answered] What is 1.794 rounded to the nearest hundredth?

[Answered] Round 198 to the nearest ten and hundred.

[Answered] How can numbers be expressed, ordered, and compared?

[Answered] The Johnson family has three sons: Billy, Tommy, and Bobby. - Billy is as old as Tommy and Bobby together. - Last year, Tommy was twice as old as Bobby was. - In two years, Billy will be twice as old as Tommy is now. How old is each son?

[Answered] Suppose \( y \) varies directly as \( x \), and \( y = 16 \) when \( x = 8 \). Find \( y \) when \( x = 16 \).