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4. Answer briefly the following questions. Write the formula if there is one and substitute the values. (Total 20 pts., 4 pts each) a) Write the formula and explain the elements of Price -Earnings Ratio. As of 1 January 2021, The Price Earnings Ratio of Dolby Inc. is 16. What does this mean? Interpret shortly. b) Write the formula for the yield to maturity of a coupon bond whose face value is paid at the end of the maturity. c)Write the formula and briefly explain the yield of a stock and explain its elements. d) Given the information below, compute the Weighted Average Cost of Capital Total Assets : 100.000 Cost of Current Liabilities : 0,18 Current Liabilities : 60.000 Cost of Long Term Liabilities : 0,20 Long Term Liabilities: 10.000 Cost of Equity : 0,25 Equity : 30.000