Math question: Solve the system of inequalities by graphing: x + 2y > 3 and x - y ≤ 5.
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Math question: Find the seventh derivative of f(x) = 3x^5 + 2x^3 - 7x^2 - 5x + 4.
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Question: Using the Extreme Value Theorem, find the absolute maximum and minimum values of the function f(x) = x² - 5x + 6 on the closed interval [0, 4].