Answer:
See explanation section
Explanation:
(a) December 1 Cash Debit $18,000
Unearned revenue Credit $18,000
Note: The company received the money in advance for a contract to do during December to April. Therefore, they received cash while a liability increased due to receiving advance money.
(b) December 31 Unearned revenue Debit $3,600
Service revenue Credit $3,600
Note: As the company started performing, after the completion of 1st month, i.e., December 1 to December 31, the advance money started expiring because of providing services. Moreover, as the service is performed evenly for 5 months, the 1st month's revenue = $(18,000/5) = $3,600.