L Question 9 (12 marks) (a) (5 marks) On June 1, 2021, Zero Company signed an agreement with Window Company. According to the contract, Zero will deliver 10 trucks to Windows on June 1 and repurchase the trucks on October 1, 2021, at 105% of the original price. Window Company immediately made the payment on the contract-signing day. Each truck has a sales price of $350,000. Instructions i. Prepare Zero's journal entry on June 1, 2021. ii. Prepare Zero's journal entry on October 1, 2021. (b) (7 marks) On July 1, 2021, Ellen Inc. entered into a contract to deliver one of its specialty machines to Karen Co. The contract requires Karen to pay the contract price of 3,000 in advance on July 15, 2021. Karen pays Ellen on July 15, 2021, and Ellen delivers the machine (with cost of 1,900) on July 31, 2021. Instructions (a) Prepare the journal entry on July 1, 2021, for Ellen. (b) Prepare the journal entry on July 15, 2021, for Ellen. (c) Prepare the journal entry on July 31, 2021, for Ellen