The unadjusted trial balance of the Smith Engineering Company as of December 31 is found on the trial balance tab. The following information is required to prepare the necessary adjusting entries for the Smith Engineering Company.

• 1) The balance in Prepaid insurance represents a 24-month policy that went into effect on December 1. Review the unadjusted balance in Prepaid insurance, and prepare the necessary adjusting entry, if any.
• 2) Based on a physical count, supplies on hand total $3,300. Review the unadjusted balance in Supplies, and prepare the necessary adjusting entry, if any.
• 3) The equipment is expected to have an 5-year useful life, and be worth about $9,000 at the end of five years. Review the unadjusted balance in Accumulated depreciation, and prepare the necessary adjusting entry to record the monthly depreciation, if any.
• 4) On December 26, the client paid a $3,600 60-day fee in advance, covering December 27 to February 24. Review the unadjusted balance in Unearned Consulting Revenue, and prepare the necessary adjusting entry, if any.
• 5) Smith Engineering's employee earns $80 per day for a five-day workweek beginning on Monday and ending on Friday. The employee was last paid on Friday, December 26. Review the unadjusted balance in Salaries expense, and prepare the necessary adjusting entry, if any.
• 6) In the second week of December, Smith Engineering agreed to provide 30 days of consulting services to a local fitness club for a fixed fee of $2,940. The terms of the initial agreement call for Smith Engineering to provide services from December 12, through January 10, or 30 days of service. The club agrees to pay Smith Engineering $2,940 on January 10, when the service period is complete. Review the unadjusted balance in Consulting revenue, and prepare the necessary adjusting entry, if any.