What is the limit of (3x^2 + 2x - 5) as x approaches 2?
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What is the average income of 100 people surveyed, given that 30% earned $40,000 per year, 50% earned $50,000 per year, and the rest earned $60,000 per year?
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What is the dot product of the vectors A=[3, -2, 5] and B=[1, 4, -6]? (