This question seems to be a good example of why we need to learn math!
P=present value i=interest rate = 0.02 per year time, t=1 year we need P such that interest = Pit ≥ 9.99 or P(.0002*1) ≥ 9.99 => P ≥ 9.99/0.0002 = 49950
Answer: it takes a minimum balance of $49950 to cover a "below minimum balance fee" of $9.99.