Introduction to sigma notation

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12, 22, 36, 47, 61, 69, 77, 828

16, 25, 36, 49,

\{4,7,12,19,28\}

10^{\text {th }}

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3,15,75,375, \ldots

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4, 69, 75, 76, 79, 85, 89, 97

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74, 84, 86, 87, 88, 91, 92, 94, 979

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10, 15, 19, 26, 29, 42, 46, 191

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75, 80, 82, 83, 84, 85, 87, 839

\sum_{n = 1}^{34} (n + 2)^3

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\text{[A]infinite}

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\text{[B]finite}