On July 1, 2018, Ellsbury Inc. entered into a contract to deliver two specialty machines to Kickapoo Landscaping Co. The contract requires Ellsbury to deliver one specialty machine but the payment would not be made until the second machine is delivered. The total contract price is $30,000, divided between the first and second machine as $20,000 (cost- $15,000) and 10,000 (cost- $8,000) respectively.

Ellsbury delivered the first machine on August 20 and the second machine on September 15. Kickapoo paid the entire amount on September 30.

(a) Prepare the journal entry on July 1, 2018, for Ellsbury.

(b) Prepare the journal entry on August 20, 2018, for Ellsbury.

(c) Prepare the journal entry on September 15, 2018, for Ellsbury.

(d) Prepare the journal entry on September 30, 2018, for Ellsbury.