Suppose a firm issues 4,000 20-year bonds to the general public on 1/1/2012 with a coupon rate of 12.96% and that the bonds conform to the basic structure of a marketable bond as we've discussed them in class. Assuming the firm would be able to issue new bonds today at a rate of 7.52%, what would be the market value of the firm's outstanding portfolio of bonds in the market today? Recall that today's date is 11/30/2021 and bonds pay interest every six months at the end of each semi-annual period. To answer this question you MUST show how you would calculate the value of each individual bond using the equation we've discussed in class, identify the total number of bonds the firm issued in 2012, and show how you would come up with the market value of the firm's portfolio of bonds. Be specific, show the algebra used in ALL of your work,