An investоr bоught 100 shаres оf stock X аt $80 per shаre on margin. The initial margin (IM) was 80% and the maintenance margin (MM) is 60%. Now, the stock price is $35 per share. a. Calculate Pm . [Note: Do not type your answer in Canvas] [10 points] b. Calculate the amount of cash this investor must send to bring the MM back to 60%. [Note: Do not type your answer in Canvas] [10 points] c. If this investor does not send cash, calculate the dollar amount in stock the broker will sell to bring the MM back to 60%. [Note: Do not type your answer in Canvas] [10 points]