Prepare the journal entries to record the following transactions for Eklund Company which has a calendar year end and uses the straight-line method of depreciation. (a) On September 30, 2020, the company exchanged old delivery equipment and $24,000 for new delivery equipment. The old delivery equipment was purchased on January 1, 2018 for $84,000 and was estimated to have a $12,000 residual value at the end of its 5-year life. Depreciation on the delivery equipment has been recorded through December 31, 2019. It is estimated that the fair value of the old delivery equipment is $39,000 on September 30, 2020. (b) On June 30, 2020, the company exchanged old office equipment and \$40,000 for new office equipment. The old office equipment originally cost $80,000 and had accumulated depreciation to the date of disposal of $35,000. It is estimated that the fair value of the old office equipment on June 30 was $50,000. The transaction has commercial substance