Tell whether the sequence 12, 4, -4, -12, -20, ... is arithmetic

yes, it is arithmetic as the common difference is -8

Good evening

Step-by-step explanation:

→ 4-12=-8

→ -4-4=-8

→ -12-(-4)=-8

→ -20-(-12)=-8

As you can see the difference between any two consecutive terms is the same which prove that it’s an arithmetic sequence .

:)

24+x=y

step-by-step explanation: