A trader buys 200 shares of GameStop stock on margin at $150 per share. The initial margin stated by the broker is 40%, and the maintenance margin is 25%. (1) What amount should the trader deposit with the broker in the form of cash or marketable securities? (2) If the price of the stock increases by $20, what would be the new balance in the margin account? (3) At what price level will the trader receive a margin call from the broker