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Questions in Grade Middle-school

[Open]Could the last carbon atom in a chain make bonds with four hydrogen atoms? Why or why not?

[Open]Solve for \( y \): \[ -2(x + 3y) = 18 \]

[Open]What was the pharaoh's role in ancient Egypt?

[Open]Mr. Walton ordered 12 pizzas for the art class celebration. One fourth of the pizzas had only mushrooms. How many of the pizzas had only mushrooms?

[Open]Solve the linear systems: 1) \[ 0.5x + 4y = 16 \] \[ y = -16 \] 2) \[ 3x + 6y = 15 \] \[ -2x + 3y = -3 \] 3) \[ 7y = -14x + 42 \] \[ 7y = 14x + 14 \]

[Open]How do you write 3.04 as a mixed number?

[Open]How can I use the word "poll" in a sentence?

[Open]What might happen to the sea star population after oyster beds are destroyed?

[Open]How can you separate salt and sugar?

[Open]What advantages did the geography and climate give to people living in the Middle Colonies?