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Question: 28 if people blink on average 28800 times a day...

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28) If people blink, on average, 28,800 times a day, given a world population of approximately 7.3 billion, approximately how many total blinks occur each day worldwide? Convert both numbers to scientific notation before solving. Also, write the solution in both scientific and standard notation. Be careful - your initial solution will not be in proper scientific notation form 29) The United States purchased the Louisiana Territory (known as the Louisiana Purchase) from France in 1803 for $15 million. Considering the land area of the Louisiana Territory was approximately 827 thousand square miles, what price per square mile, to the nearest cent, did the United States pay for this acquisition? That is, how much did the United States pay for each individual square mile of land? Write both numbers in scientific notation before solving.
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