You want $15,000 3 years from now, while you have saved $12,500 in a savings account that pays 8 percent interest, compounded semi-annually. What are the semi-annual cash-flows associated with this situation?
(a) you need to add $( ) each half year to the account.
(b) you can withdraw $( ) each half year to the account a or b is one of the answer and you have to write a number in the blank.