Old Economy Traders opened an account to short-sell 1.000 shares of internet Dreams at $40 per share the initial margin requirement was 50% (The margin account pays no interest A year later the price of internet Dreams has risen from $40 to $50, and the stock has paid a dividend of $2 per share a. What is the remaining margin in the account? Remaining margin b-1. What is the margin on the short position? Short margin b-2. If the maintenance margin requirement is 30%. Will Old Economy receive a margin cair Yes No c. What is the rate of retum on the investment? (Negative value should be indicated by a minus sign.) Rate of retum