5) Teacher Me-An sent an email to 3 of her students. Each of her 3 students sent the e-mail to 3 more of their classmates. And, each of those sent it to other classmates, and so on. Find the number of e-mails sent at stage 5 A. 27 B. 81 C. 243 D. 729
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Answer:
letter B. 81
Step-by-step explanation:
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