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In 1960, the world record for the men's mile was 3. 91 minutes. In 1980, the record time was 3. 81 minutes.

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Answer:

Answer and Explanation: The world record is assumed to be linearly decreasing with time. The world record decreases from 3.91 minutes to 3.81 minutes from 1960 to 1980, respectively.

Step-by-step explanation:

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