part A and B please

a. If the maintenance margin is 20%, how high can Intel's price rise before you get a margin call? b. How much money would you have to put into your account in order to satisfy the maintenance margin requirement if the price suddenly jumped to $31 a share? 17.Suppose that you sell short 500 shares of Intel, which is currently selling for $20 per share. Your broker requires 40% initial margin in short sales, which you covered using the T- bills in your account. [10+ 10 = 20 points] a. If the maintenance margin is 20%, how high can Intel's price rise before you get a margin call? b. How much money would you have to put into your account in order to satisfy the maintenance margin requirement if the price suddenly jumped to $31 a share