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Question: in august 2009 usain bolt of jamaica set a new...

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In August 2009, Usain Bolt of Jamaica set a new World Record in the 100 m dash, with a time of

9.58 s. What was Usain's average speed in mi/hr?

1 mi = 1.61 km

1 hr = 3,600 s

An area of 50 mm^2 is equal to how many m^2?

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