retirement account at the end of every year for the next 27 years. which she contributes. Round your answer to a whole dollar amount. because Lindsay invests at the end of the year, there is no interest earned on the contribution for the year in which she contributes. retirement account at the end of every year for the next 27 years. which she contributes. Round your answer to a whole dollar amount. because Lindsay invests at the end of the year, there is no interest earned on the contribution for the year in which she contributes