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Questions in Grade Middle-school

[Homework Help] Explain why each mineral has its own properties different from every other mineral.

[Homework Help] Emma thinks of two prime numbers and adds them together to get 36. What are the possible prime numbers Emma could be thinking of?

[Homework Help] What is 3,465 in expanded form?

[Homework Help] Jack has two square-based pyramids that are the same size. He sticks the square faces together to make a new 3D shape. How many faces and how many edges does his new 3D shape have?

[Homework Help] What is the definition of squeezing a gas into a smaller space?

[Homework Help] Write the missing number: \[ 12.5 \div \, ? \, = 7.5 \div 1.5 \]

[Homework Help] What is the cube root of 81?

[Homework Help] An airplane 30,000 feet above the ground begins descending at the rate of 2,000 feet per minute. Assume the plane continues at the same rate of descent. The plane's height and minutes above the ground are related to each other. Identify the variables in this situation: - \(x =\) _____ - \(y =\) _____ What is the given information in this problem (find all that apply)? - Y-intercept: _____ - Slope: _____ - One point: \((___,___)\) - Second point: \((___,___)\)

[Homework Help] What are the possible dimensions of a rectangle with an area of 430 square meters?

[Homework Help] A salesperson earns $450.20 per week plus 15% of her weekly sales. Which of the following describes the sales necessary for the salesperson to earn at least $600.10 in one week?