need explanations for these because i really don't get it

Even though most corporate bonds in the United States make coupon payments semiannually, bonds issued elsewhere often have annual coupon payments. Suppose a German company issues a bond with a par value of 1,000,8 years to maturity, and a coupon rate of 8 percent paid annually. If the YTM is 10 percent, what is the current bond price in euros? Note: Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16. Nikita Enterprises has bonds on the market making annual payments, with 16 years to maturity, a par value of $1,000, and selling for $957. At this price, the bonds yield 9 percent. What must the coupon rate be on the bonds? Note: Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16