Answer
$9$
Work Step by Step
The difference between each pair of consecutive terms is called the common difference.
Common difference $d=-7-(-16)=2-(-7)=11-2=9$.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.