Phil’s little sister, Angela, told him a story. The next day, Phil told 4 people. The day after, each of

Phil’s little sister, Angela, told him a story. The next day, Phil told 4 people. The day after, each of those 4 people told 4 more people. Each of these people told 4 more people. The table below shows the number of people that have heard Angela’s story, N(t), t days after Angela originally told it.

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