Use the following information to answer questions 5 through 7. Stock Price IBM Apple $207.65 $643.95 $24.36 GM 5. Assume you have $10,000 and the initial margin is 50% a. How many shares of IBM can you buy on margin? b. If you buy that many shares, and the price falls to $180, what is your margin? c. If you buy that many shares, and the maintenance margin is 35%, at what price will you receive a margin call? d. If you buy that many shares, and the price of IBM increases to $240, what is your holding period return? 6. Assume you have $10,000 and the initial margin is 50% a. How many shares of GM can you buy on margin? b. If you buy that many shares, and the price falls to $20, what is your margin? c. If you buy that many shares, and the maintenance margin is 30%, at what price will you receive a margin call? d. If you buy that many shares, and the price of GM increases to $35, what is your holding period return