The average person takes approximately 30,000 breaths per day. Kelly decides the average person will take about 900 million breaths in a lifetime, is this reasonable? Mathematically justify your response with scientific notation.

9 * 10

^{8 }/ 3 * 10^{4}= 3 * 10^{4 }Number of days of lifetime 3 * 10

^{4}/ 365 = 82 ( approximation for years of life) It is a good approximation for life time to breath 9* 10

^{8}
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