pls answer question 1 and 2

(Solving for n) Jack asked Jill to marry him, and she has accepted under one condition: Jack must buy her a new $300,000 Rolls-Royce Phantom Jack currently has $45.100 that he may invest. He has found a mutual fund with an expected annual return of 73% in which he will place the money How long will it take Jack to win Jill's hand in marriage? Ignore taxes The number of years it will take for Jack to win Jur's hand in marriage is years. (Round to one decimal place) wi is If you invest a sum of money at 8% compounded annually, how long will it take for it to double? (Select the best choice below.) O A. 5.4 years OB. 9 years O C. 11 years OD. 4 years