Cortez Company issued $180,000, 11%, 10-year bonds on December 31, 2018, for $170,000. Interest is payable semiannually on June 30 and December 31. Cortez uses the straight-line method of amortization.

Prepare the journal entries to record:

a) The issuance of the bonds.

b) The payment of interest and the discount amortization on June 30, 2019.

c) The payment of interest and the discount amortization on December 31, 2019.

d) The retirement of the bonds at maturity, assuming interest for the last interest period has been paid and recorded.