(Related to Checkpoint 5.5) (Solving for n ) Jack asked Jilt to marry him, and she has accepted under one condition: Jack must buy her a new $300,000 Rolls-Royce Phantom. Jack currently has $57,330 that he may invest. He has found a mutual fund with an expected annual return of 4.5 percent in which he will place the money. How long will it take Jack to win Jir's hand in marriage? Ignore taxes and inflation. The number of years it will take for Jack to win Jirs hand in marriage is years. (Round to one decimal place.)