Is each of the following an arithmetic sequence -12, -4, 0, 2

please help

Iam so stuck. what is the worked out answer for this question?

Drag each sequence of transformations to the correct location on the table. classify the sequences of transformations based on whether or not they prove the congruency of the shapes by mapping shape i onto shape ii. plz i'll rate u 5 stars need this done for a mastery test

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9