Question: What is the vertex of the quadratic function f(x) = -2x^2 + 5x + 3?
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What is the probability that a randomly selected student prefers reading over watching TV, given that there are 20 students who prefer reading, 30 students who prefer watching TV, and altogether 100 students?
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What is the x-intercept of the cube root function f(x) = ∛x?