Hi guy's ugh let's follow eachother​

Your mother's well-diversified portfolio has an expected return of 12.0% and a beta of 1.20. she is in the process of buying 100 shares of safety corp. at $10 a share and adding it to her portfolio. safety has an expected return of 15.0% and a beta of 2.00. the total value of your current portfolio is $9,000. what will the expected return and beta on the portfolio be after the purchase of the safety stock?

Granby foods' (gf) balance sheet shows a total of $25 million long-term debt with a coupon rate of 8.50%. the yield to maturity on this debt is 8.00%, and the debt has a total current market value of $27 million. the company has 10 million shares of stock, and the stock has a book value per share of $5.00. the current stock price is $20.00 per share, and stockholders' required rate of return, r s, is 12.25%. the company recently decided that its target capital structure should have 35% debt, with the balance being common equity. the tax rate is 40%. calculate waccs based on book, market, and target capital structures. what is the sum of these three waccs?

Which statement best explains the relationship between points a and b? a. consumption reaches its highest point, and then supply begins to fall. b. inflation reaches its highest point, and then the economy begins to expand. c. production reaches its highest point, and then the economy begins to contract. d. unemployment reaches its highest point, and then inflation begins to decrease.