Answer:
i dont knwo
Step-by-step explanation:
A
this is a geometric sequence since there exists a common ratio r between the terms
r = = = = 3
B
to obtain the next term in the sequence multiply the previous term by 3
= 3 ← recursive rule
C
the n th term of a geometric sequence is
=
where is the first term in the sequence
= 7 × ← explicit rule