Facebook

Exercise 5.32 (JHTP) According to CNNMoney.com, Facebook hit 500 million users in July of 2010 and its user base has been growing at a rate of 5% per month. Using the compound-growth technique you learned in Fig 5.6 and assuming this growth rate continues, how many months will it take to grow is user base to 1 billion users? How many months will it take for Facebook to grow its user base to 2 billion users (which, at the time of this writing, was the total number of people on the Internet)?

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