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16 September, 05:31

The seventh term of an arithmetic sequence is 10.2 and the twelfth term is 17.7.

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  1. 16 September, 08:40
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    Answer: 1.5 common difference

    Step-by-step explanation:

    7 = 10.2, 12 = 17.7

    d = 17.7 - 10.2 / 12 - 7

    d = 7.5 / 5

    d = 1.5
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