Linda Williams wants to accumulate $15,000 by the end of 12 years. If the annual interest rate is 8.40 percent and interest compounds semiannually, how much will she have to invest today to achieve her goal? (If you solve this problem with algebra round intermediate calculations to 6 decimal places, in all cases round your final answer to the nearest penny.) Present value of investment $ 5588.1 TA eTextbook and Media Save for Later Attempts: 1 of 3 used Submit