Please show work.

The expected return on Walmart Stock is 10 percent. It's stock is trading at $100 per share. You can invest your money in your local bank (risk-free) and get a 3% return. You can borrow from your local bank at a 5% interest rate. How mush you structure your portfolio so that you can achieve an expected return of 15 percent when Walmart Stock and your local bank are the only assets available for you to use and you have $1,000 of your money available to invest? What do you do at your local bank -- Borrow or Invest? What do you do with Walmart Stock -- Buy or Short? How much money do you borrow or invest at your local bank? How many shares of Walmart Stock do you Buy or Short