Answer:
Beatrice will accumulate $1230.72 at the end of the year.
Step-by-step explanation:
We can write:

for deposits
The first month would have only the deposit reflected in her balance, then, expanding some steps of the calculation would yield:

A geometric series is given by:

Translating our series to the short form:

plugin in the values for the 12 month gives:

You will need more information on the years.
A line segment has two endpoints and a ray has one endpoint....
so it is a line segment.
<span>The answer to your question is a≥<span><span>9<span> or </span></span>a</span></span>≤<span>2</span>