(Solving for n) Jack asked Jill to marry him, and she has accepted under one condition: Jack must buy her a new $310 comma 000 Rolls-Royce Phantom. Jack currently has $36 comma 940 that he may invest. He has found a mutual fund with an expected annual return of 5 percent in which he will place the money. How long will it take Jack to win Jill's hand in marriage? Ignore taxes and inflation.