Question

Can someone explain their answer? ​

Answer 1

Answer: -36

Explanation:

13, 6, -1

to get from 13 to 6 and 6 to -1, you would subtract by 7 so keep subtracting by 7 until you get 8 different terms

13, 6, -1, -8, -15, -22, -29, -36

the eighth term would be -36

i hope that makes sense

Answer 2

The answer is -36 because
13,6,-1,-8,-15,-22,-29,-36