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题目材料:

Another trend line is to be drawn for the actual minimum wages, passing through the data points for October 1990 and October 1999. If the new trend line is used to predict the minimum wage in October 2009, approximately what would be the predicted minimum wage, in dollars per hour?
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A.$6.15
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B.$6.30
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C.$6.45
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D.$6.65
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E.$6.95
D显示答案