Question: Find a formula for an for the arithmetic sequence. 1. a1 = 7, d = 12 2. a1 = 34, d = 4 3. a3

Find a formula for an for the arithmetic sequence.
1. a1 = 7, d = 12
2. a1 = 34, d = −4
3. a3 = 96, a7 = 24

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