Answer:
a)
January 1, 2018
Dr Investment in bonds 90,000
Cr Cash 90,000
June 30, 2018
Dr Cash 1,800
Cr interest revenue 1,800
December 31, 2018
Dr Cash 1,800
Cr interest revenue 1,800
b) This investment must be reported under long term assets since they are classified as Held to Maturity.