How long will it take $48,000 placed a savings account at 10% interest to grow into $73,000? A. 4.4 years B. 5.4 years O C. 3.4 years OD. 6.4 years Sara wants to have $550,000 in her savings account when she retires. How much must she put in the account now, if the account pays a fixed interest rate of 9%, to ensure that she has $550,000 in 18 years time? A. $124,001 B. $163,236 C. $116,597 D. $209,875