6. and 7. Suppose that Linda deposits $2000/quarter for 10 years, from 1995 to 2005, into a Roth IRA earning interest at the rate of 3.5%/year, compounded quarterly. During the next 5 years from 2005 to 2010, she makes no withdrawals or further contributions, but the account continues to earn interest at the same rate. How much will Linda have in her retirement account at the end of the 15-year period