a Collected \$2,400 rent for the period October 1 to December 31, which was credted to Deferted Revenue on October 1. b. Paid \$1,200 for a two-year insurance premium on October 1 and debited Prepaid insurance for that amount. c. Used a machine purchased on October 1 for $48,000. The company estimates annual depreciation of $4,800. equired; or each of the above transactions for the Sky Blue Corporation. prepare the adjusting journal entries required on October 31 . af no antry is required for a tronsection/event; select "No Journal Entry Required" In the first account fleld.) Journal entry worksheet