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Author: Steve Risberg
Description: Algebra, difficulty level 1. A joke circulates the Internet via email, with each recipient forwarding it on to 8 friends. Find a formula to represent the number of emails sent out at any stage of the forwarding, and use your formula to answer some questions.
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Problem page: /library/go.html?destination=3148
Support page: Online Resource Page #3148
Solution page: Problem #3148

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