Answer:
I believe it is A. The areas of the two shaded regions are equal. .
Step-by-step explanation:
Fingers crossed.
Let

be the n'th term of the sequence.
so

is the first term,

the second term and so on...
In a geometric sequence with

, and common ratio r, the terms are as follows:




.
.
that is, each term is its previous term times the common ratio r.
In our example

and


so


Answer: r=0.75
For this question, the time given confuses me. I know the rate of return is just total return divided by divided by investment, Assuming that Matt received the $400 in dividends as cash payouts, and they weren't reinvested into buying shares of the stock, then his total return over two years was $500, Now, if Matt's dividends were reinvested into the stock - and if you have a 401(k) or IRA, that's what usually happens - then his ROI would have been only 6% because he only made a profit of $100 on an investment of $1500. Note: In the real world, in current market conditions, Matt probably would have got about a 5% return on a good stock, and Bella would have received about 0.05% on a savings account.
hope this helped you ;)