how did they got the answers

Question Upon MegaCorp just issued a five-year, $20,000 bond with a coupon rate of 12=5.96%. What price would an investor be willing to pay for the bond if they wanted a return on their investment of 12-8% Answer: 5.215 x (18.345.38) Question 7 0/1 point Rick just purchased a ten year. $5,000 bond with a 496 coupon rate for $4.930 Calculate the yield rate that Rick will earn (nominal, semi-annual Express your answer as a percent to 2 decimal places but don't include the % sign. Answer: * (4.17) Question 8 0/1 point Consider a 5 year. $1,000 bond with a coupon rate of 12-696. What price would an investor be willing to pay for the bond if they wanted a return on their investment of j2=7%? Answer: * (958.42)