hi can someone please answer this i really need the solution thank you

Answer:
A
Step-by-step explanation:
There is a common difference between consecutive terms in the sequence
18 - 24 = 12 - 18 = 6 - 12 = 0 - 6 = - 6 - 0 = - 6
Thus to find the next term, subtract 6 from the previous term
next term = - 6 - 6 = - 12 → A
Answer:
A. -12
Step-by-step explanation:
thus is because the difference of the numbers is 6 so from 24 you minus 6 and then you get 18.
18 - 6 = 12
12 - 6 = 6
6 - 6 = 0
0 - 6 = -6
-6 - 6 = -12