If an ordinary bond has a coupon rate of 14%, then the owner will get a total of $140 per year, but this $140 will come in two payments of $70 each. The yield to maturity is quoted at 16%. The bond matures in 7 years.

a. How many coupons are there?

b. What is the semiannual coupon payment?

c. What is the semiannual yield?

d. What is the bond price?

Please show step by step. Thank you very much!