broker to help pay for tie purchase. The intereat rate on the labn is 8%. Requlied: a. What is the margin in De's account when ane firat purchases the stock? b. If the share price tails to $30 per share by the end of the year, what is the remalning margin in her account? c. If the maintenance margin requirement is 30%, will she receive a imorgin call? Yea No d. What is the rate of return on hier investment? (Negatlve value chould be indicated by a minus slgh. Round your ancwer 102 declimal plocec.)