Answer:
Step-by-step explanation:
hello,
arithmetic sequence means that you go from one term to the next one by adding or subtracting a constant value
check the first sequence
-20
-25
-30
-35
-40
each time 5 is subtracted
-20 - 5 = -25
-25 - 5 = -30
-30 - 5 = -35
-35 - 5 = -40
so the correct answer is the first one.
hope this helps
