Jack asked Jill to marry​ him, and she has accepted under one​ condition: Jack must buy her a new ​$320 comma 000 ​Rolls-Royce Phantom. Jack currently has ​$34 comma 220 that he may invest. He has found a mutual fund with an expected annual return of 6.5 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.
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Part 1
The number of years it will take for Jack to win​ Jill's hand in marriage is

enter your response here years. ​ (Round to one decimal​ place.)