The December 31 inventory count of computer supplies shows $590 still available. Three months have expired since the 12-month insurance premium was paid in advance. As of December 31, Lyn Addie has not been paid for four days of work at $115 per day. The computer system, acquired on October 1, is expected to have a four-year life with no salvage value. The office equipment, acquired on October 1, is expected to have a five-year life with no salvage