How many different ways can 6 people line up in a row?
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What is the equation of the quadratic function represented by the graph below? f(x) = ax² + bx + c, with vertex (2, -3), passing through points (-1, 8) and (5, -7).
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What is the average weight in pounds of a sample of 50 six-year-old children if the mean weight is 45 pounds and the range is 10 pounds?