Future value of a portfolio.Rachel and Richard want to know when their current portfolio will be sufficient for them to retire. They have the following balances in their portfolio: Money market account (MM):$39 comma 000 Government bond mutual fund (GB):$140 comma 000 Large capital mutual fund (LC):$106 comma 000 Small capital mutual fund (SC):$77 comma 000 Real estate trust fund (RE):$85 comma 000 Rachel and Richard believe they need at least $2 comma 400 comma 000 to retire. The money market account grows at 2.5 % annually, the government bond mutual fund grows at 5.0 % annually, the large capital mutual fund grows at 10.0 % annually, the small capital mutual fund grows at 13.0 % annually, and the real estate trust fund grows at 3.0 % annually. With the assumption that no more funds will be deposited into any of these accounts, how long will it be until they reach the $2 comma 400 comma 000 goal? Rachel and Richard will need to invest their accounts for nothing or more years to reach $2 comma 400 comma 000 . (Round to the nearest whole number.)