determine the amount of the ordinary annuity at the end of the given period . ( Round to two decimalplaces ) $ 12,000 deposited annually at 8% for 18 years A woman buys an investment that pays 4 %% - compounded semi annually. She wants $ 45, 000 when she retires in Is years . How much should she invest ?. ( Round answer to two decimal places ) $ 1 3 ) The of well company puts $ 18,000 per year into a sinking fund to purchase major equipment . The fund earns 7.6 %% interest compounded annually . find the amount in the fund after 5 years . ( Round to two decimal places )