### Cite this page as follows:

"`80, 40, 20, 10, 5, ...` Determine whether the sequence is arithmetic. If so, find the common difference." *eNotes Editorial*, 25 Feb. 2016, https://www.enotes.com/homework-help/80-40-20-10-5-determine-whether-sequence-635618.
Accessed 10 Dec. 2022.