1. Suppose you buy 100 shares share of stock initially selling for $50, borrowing 25% of the necessary funds from your broker, i.e., the initial margin on your purchase is 25%. You pay an interest rate of 8% on margin loans. a. How much of your own money do you invest? How much do you borrow from your broker? b. What will be your rate of return for the following stock prices at the end of a 1-year holding period? (1) $40, (2) $50, (3) $60. 2. Repeat Question 1 assuming your initial margin was 50%. How does margin affect the risk and return of your position