Math question: What is the 3rd derivative of f(x) = 2x^5 - 4x^3 + 7x^2 - 9x + 1?
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Question: ⅝ of the students in a class prefer chocolate, ¼ prefer vanilla, and the rest prefer strawberry. What percentage of students prefer strawberry?
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Question: What is the definition of an integral in calculus?