Leslie noticed that the daily number of e-mail messages she received over the course of
Chapter 6, Problem 23(choose chapter or problem)
Leslie noticed that the daily number of e-mail messages she received over the course of two months form an arithmetic sequence. If she received 13 messages on day 3 and 64 messages on day 20: a. How many messages did Leslie receive on day 12? b. How many messages will Leslie receive on day 50?
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