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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Question: If two triangles have two pairs of congruent corresponding sides, is it always true that they are congruent?
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What is the limit as x approaches 3 of (2x^2 - 3x + 5)?