Final answer:
The provided sequence contains a typo and does not allow for finding a common difference. For a correct sequence, the common difference is found by subtracting one term from the following term.
Step-by-step explanation:
The sequence provided appears to contain a typo and does not have a clear pattern. However, to find the common difference of a sequence, you would typically subtract one term from the next. For example, if you have a sequence like 5, 10, 15, 20, you would subtract 5 from 10 to get a common difference of 5. This sequence is an arithmetic sequence because each term is an equal distance, or common difference, apart from the next. However, due to the apparent typo or error in the provided sequence, it's not possible to determine a common difference.