please help solve these problems , especially because I got a test in two weeks and need to learn how them in the most simple ways

West Corporation issued 19-year bonds 2 years ago at a coupon rate of 9.4 percent The bonds make semiannual payments. If these bonds currently sell tor 102 percent of par value. what is the YTM? Multiple Choice 0 10.06% 11.00% 4.53% 3.17% 3.25% 0000 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, 14 years to maturity, and a coupon rate of 7 percent paid annuallly. If the yield to maturity is 10 percent, what is the current price of the bond? Multiple Choice O (1,030.00 O E817.95 O E1,266.36 O $779.00 O $740.05Gabriele Enterprises has bonds on the market making annual payments, with 18 years to maturity. a par value of $1,000, and selling for $970. At this price, the bonds yield 11 percent. What must the coupon rate be on the bonds? Multiple Choice O 10.61% O 21.22% O 10.94% O 10.71% O 11.00%