Answer:
B part Rate the 0ercent that interest is paif anually as a decimal
Looks like the starting series is

Note the degree of the first few terms in the series, for
, are
, and so on.
So if the series were to start at
, we would need to preserve that pattern, and we do that by replacing
with
:

Simplifying a bit, we end up with

Answer
The answer and procedures of the exercise are attached in the following archives.
Step-by-step explanation:
You will find the procedures, formulas or necessary explanations in the archive attached below. If you have any question ask and I will aclare your doubts kindly.