Jacques deposited $1,900 into an account that earns 4% interest compounded semiannually. after t years, jacques has $3,875.79 in the account. assuming he made no additional deposits or withdrawals, how long was the money in the account? compound interest formula: mc007-1.jpg t = years since initial deposit n = number of times compounded per year r = annual interest rate (as a decimal) p = initial (principal) investment v(t) = value of investment after t years