Determine whether the sequence shown are arithmetic or geometric 1,8,15,22,29

1

8 < - - - 1 + 7

15 < - - - 8 + 7

22 < - - - 15 + 7

29 < - - - 22 + 7

is simply adding "7" to get the next value, so is an arithmetic sequence, whose common difference is 7.