In bond valuation, the five koy oloments are face value, number of penods to maturity, discount rate per period coupon payment pee ponod, and fair value of the bond (the markel price) Given any four you can solve for the fith. Please answer the followng questions If the number of periods is 7 , face value is $1000, the coupon rate is 10%, coupon is paid twice a yoar, and the current bond price is $900, what is the discount rate per poriod ? Buid a modet and find it 639%266%5.17%3.98%