What is the common difference of the arithmetic sequence 7,10,13?

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There are a few different types of sequences. One type is the arithmetic sequence which can be expressed as a set of integers. An arithmetic sequence is infinite and has a final value.

The 7, 10, 13 sequence corresponds to an arithmetic sequence with three terms: 7, 10, 13. The final value is 42 which means that the terms are 7 + 10 + 13 = 42. However, the geometric sequence has two terms and ends at 1 while the decimal exponential sequence has one term and ends at 0.