You want to invest an amount today that will last for 4 years and allow you to withdraw $785 at the end of each 6 - month period. You earn 2% APR compounded semiannually on your investment. How much do you need to invest today to achieve your goar? A company's board of directors approved a 2 -for-1 stock split. If you owned 290 shares before the stock split at $12.80 per share, how many shares would you own after the split