please show the formal you used to solve the answer

OK, let's jump in the pool one more time with WLS! What if we change a couple of things from the bond problem above. 10 years, not 3 years pass and now you want to sell your WLLS bond. Similar bonds now have a 4% coupon. What should be the value of your bond now in the secondary market? Yes - you must show all work. OK, let's jump in the pool one more time with WLS! What if we change a couple of things from the bond problem above. 10 years, not 3 years pass and now you want to sell your WLLS bond. Similar bonds now have a 4% coupon. What should be the value of your bond now in the secondary market? Yes - you must show all work