Question

Question is given in picture below. Help will be greatly appreciated!

Answer 1

I’m pretty sure it’s C

Answer 2

Answer:

C

Step-by-step explanation:

Th explicit formula of a geometric sequence has the following format:

$x_n=a(r)^{n-1}$

Where a is the initial term and r is the common ratio.

From the recursive formula, we can see that each subsequent term is multiplied by 13. Thus, the common ratio is 13.

Also, we are given that the first term is 7.

So, substituting these in, we have:

$x_n=7(13)^{n-1}$

Our answer is C

And we're done!