Answer:
The common difference of the sequence is 17 ( you said difference so you already included the negetive sign in the front but if you didn't notice then the actually answer is -17)
Step-by-step explanation:
-17 + 9 ( well 9 or +9 is the same and so is 17 and +17) so as i was sayiing -17 + 9 = -8
-8 -17 = -25
-25 - 17 = -42
-42 - 17 = -59
