All of the transactions of Starfish Tattoo Parlor Inc. for the year have been journalized and posted. The following information has been gathered for the adjustment process as of December 31, 2016: A) The Supplies account shows a balance of $990. A count of supplies revealed $460 on hand. B) The $1,200 premium relating to a oneyear insurance policy was paid on December 1, 2016. C) The companys equipment, which was purchased last year, depreciates at a rate of $1,100 per year. D) On September 30, 2016, a customer paid $10,700 in advance for services. Of this amount, 30% was earned as of 12/31/16. E) Employees are paid $3,000 on Fridays for the 5-day work week, which ends on that Friday. However, December 31, 2016 falls on a Thursday. F) The company has completed $540 of work for customers; the customers have not yet been billed and the related revenue has not been recorded. Required: a. Prepare the required adjusting entries required at December 31, 2016. (If no entry is required for a transaction/event, select "No Journal Entry Required" in the first account field.)