jack asked jill to marry him, and she has accepted under one condition: jack must buy her a new $$310,000$ rolls royce phantom. jack currently has $$64,690$ that he may invest. He has found a mutal fund with an expected annual return of $4\mathrm{.}5$ percent in which he will place the mney. How long will it take jack to win jill's hand in marriage? ignore taxes and inflation.