Math question: Write the expression 3(x + 4) - 2(x - 3) using distributive property and combine like terms. (
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What is the period of the function f(x) = 2cos(3x) + sin(4x)?
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What is the average monthly temperature (°C) for a city over the course of a year if January's temperature is -5°C, February's is 2°C, March's is 8°C, and so on, up to December's at 15°C?