Value of a bond): Calculate the annual coupon value is 7%, and the investor requires a rate of return of 10%. bond that matures in 10 years and has a "face value" of $ 1,000. The interest rate

a. Calculate the value of the bond at the 10% yield ratio

b. Find the value of the bond if the rate of return is 5%

C. Find the value of the bond if the rate of return is 7%

d. Compare the results b and c. Explain in terms of the relationship of the bond price and interest rates.