Can someone please help explain how to do these problems?

Question 3 A bond with a par value of $1,000.00 and a coupon rate of 7.00% (semiannual coupon) has a current yield of 7.00%. What is its nominal yield to maturity? The bond has 7 years to maturity. 0 755% o 6.39% O 7.69% 0700% 0 729% Question 4 A perpetual bond with a par value of $1.000.00 and a semiannual coupon has a nominal yield to maturity of 5.10% and a current price of $1,065.00. What is its current yield? o 4.61% 05.00% 4.69% o 5.10% O 0.00%