We are asked to find the common difference of associated arithmetic sequence.
The common difference is basically the difference between any two consecutive terms.
d = 70 - 54 = 16
d = 54 - 38 = 16
d = 38 - 22 = 16
d = 22 - 6 = 16
As you can see, the common difference is 16 and is the same between any two consecutive terms
Therefore, for the given arithmetic sequence, the common difference is 16.
