Suppose you have $175,000 in cash, and you decide to borrow another $40,250 at a 6% interest rate to invest in the stock market. You invest the entire $215,250 in a portfolio J with a 23% expected return and a 27% volatility. a. What is the expected return and volatility (standard deviation) of your investment? b. What is your realized return if J goes up 12% over the year? c. What return do you realize if J falls by 33% over the year