posted by mon

Layne sends an email to 7 people and those 7 people send the email to 7 more people, and so on. Write an expression to show the number of people who will receive the email after the fifth round.

  1. Anonymous

    7^n =7^5=16807

  2. Reiny

    after 1st round 7 people receive email
    after 2nd round 7^2 or 49 receive email
    after 3rd round 6^3 or 343 receive email
    after 4th round 7^4 or 2401 receive email
    after 5th round ...........16807 receive email

    number receiving email in 5th round = 7^5

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