Assume that Karen begins contributing $2400 per year into a retirement investment accoumt. If she cart eam an merage ancial return of 8.005 on her investment how much will she have accumulated at age 683 /Rocrid intermediote calcidotion to 6 decimat plocks, es. 15.251673 and final answer to 0 decinal places, es. 5.125. She will accumulates in the account. Whuld try to obtain a lors'term averaberate of return of itock