Jacques deposited 1 dollars comma 900 into an account that earns 4 percent interest compounded semiannually. After t years, Jacques has 3 dollars comma 875 point 7 9 in the account. Assuming he made no additional deposits or withdrawals, how long was the money in the account? Compound interest formula: cap v times t is equal to cap p times open paren 1 plus r over n close paren raised to the n t power t is equal to years since initial deposit n is equal to number of times compounded per year r is equal to annual interest rate (as a decimal) cap p is equal to initial (principal) investment cap v times t is equal to value of investment after t years