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An athlete runs the mile in 3 minutes, 53.9 seconds. At the same speed, how many...

An athlete runs the mile in 3 minutes, 53.9 seconds. At the same speed, how many seconds does it take the same athlete to run 1900 m? (1 mile = 1609.3 meters) (enter your answer to 2 significant figures)

The day is defined as having exactly 24 hours of 60 minutes, and each minute is exactly 60 seconds. The year is 365.24 days long. How many seconds are there in 13 centuries, (where a century is 100 years)? (Enter your answer to 2 significant figures)

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