What is the average weight of 20 students in a class if their weights are 120, 130, 135, 140, 125, 130, 135, 150, 155, 125, 130, 140, 135, 130, 145, 160, 155, 150, 135, and 140 pounds?
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Question: What is the limit as x approaches 4 of (3x^2 - 16x + 20)/(x^2 - 16x + 63)?
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What is the product of 25 multiplied by 4, divided by 2, added to 8, subtracted from 50, and then divided by 5?