Answer serial wise "a,b,c,d"

An initial margin requirement is 48% and maintenance margin of 55 %. An investor buys GPH, 9500 shares of stock on margin at Tk. 92.55 per share. The price of the stock subsequently drops to tk. 47.60. a. Find the amount investor has to deposit for initiating the transaction. b. What is the actual margin at tk. 57.65 share price is the account restricted? c. If the price rises to tk. 66.50, is there a margin call? d. Show the amount of margin call is required to bring back account into operational at price of tk. 53.90