De Trader opens a brokerage account and purchases 300 shares of Internet Dreams at $40 per share. She borrows $4,000 from her broker to help pay for the purchase. The interest rate on the loan is 8% Required: a. What is the margin in Dee's account when she first purchases the stock? Margin S 8,000 b. If the share price falls to $30 per share by the end of the year what is the remaining margin in her account? Remaining margin 5,000 c. If the maintenance margin requirement is 30%, will she receive a margin call? O Yes No d. What is the rate of return on her investment? (Negative value should be indicated by a minus sign. Round your answer to 2 decimal places.) Rate of return 344 %