15) De Trader opens a brokerage account and purchased 100 shares of Internet Dreams a $60 per share. She borrows $2,000 from her broker to help pay for the purchase. The interest rate on the loan is 10%. (LO 3-4) a. What is the margin in Dee's account when she first punases the stock? b. If the share priee falls to 550 per share by the end of the year what is the remaining margin in her account? If the maintenance margin requirement is 30%, will she receive a margin call? c. What is the rate of return on her investment