Question

Check whether the sequence is arithmetic. If​ so, find the common difference d. 2​, 7​, 12​, ​17, 22 ... Select the correct choice below​ and, if​ necessary, fill in the answer box within your choice.

Answer 1

The answer is A.

Explanation:

The common difference is five because 7-2=5, 12-7=5, 17-12=5, 22-17=5, and so on.