Answer:
12n+5
Step-by-step explanation:
The difference is 12 so that means n is 12 and the +5 is what the number in the sequence is before 17
If you want to simplify, -11-132x
13
First find the average the numbers (40 / 4 = 10)
2 are more and 2 are less
7, 9, 11, 13