~!¡! Congruent and Similar Polygons ¡!¡~ ~Helps ~ please!~

In the picture △QCM∼△BWG.

What is the ratio of QC to BW?
A.) 3/4
B.) 4/3
C.) 1/2
D.) 2/1

At the beginning of year 1, carlos invests $600 at an annual compound interest rate of 4%. he makes no deposits to or withdrawals from the account. which explicit formula can be used to find the account's balance at the beginning of year 5? what is, the balance?