Will mark brainiest! !!50 Points!! The first question since it got cut off is : (A) is the sequence arithmetic, geometric, or neither? How do you know?

Answer:
Geometric, 81, 3
Step-by-step explanation:
A geometric sequence is defined as one that continues with multiplication.
We can tell that the sequence proceeds by multiplying 1/3.
a2 is 81 because it is the second term given in the sequence.
a5 is 3 because it equals a4 *1/3, which is 9*1/3 which is 3
I hope this helps! :)