You have a positive opinion of IBM stock, which is currently priced at $100 per share. You believe it will be valued at $150 per share in one year. You have $20,000 to invest. You want to make a dollar return of $14,871 in one year based on your prediction that the stock price will be $150 per share after one year. Margin borrowing has an interest rate of 9% per year. How much should you borrow from your broker