Your parents want to place money in an account so that you can withdraw $200 a week for the next four years while you finish college and graduate school. If they place the money in an account that earns 4% interest, compounded weekly, how much do they need to place in the account so that the funds will be depleted in four years? (Assume that you will make the first withdrawal one week from today.) Elizabeth wants to have $500,000 saved for retirement in 20 years. Assuming she can earn an 8% annual return on her investments, how much will she need to save at the end of each of the next 20 years to accomplish her goal