in 2013 carnival cruise lines decided to sell some bonds. they sold the bonds for $1000 (face value) with a 20 year maturity and 8% coupon. 2 years have passed. interest rates on similar bonds have declined to 5 percent. if an owner attempts to dell their carnival bond bought for $1000 in 2013 what should they expect to show for it in a secondary market? please show formula and work