6. The equipment purchased on December 2,2025 , is being depreciated using the straight-line method over 5 years, with a salvage value of $3,240. 7. The patent was acquired on January 1, 2025, and has a useful life of 9 years from that date. 8. Unpaid salaries at December 31,2025 , total $3,960. 9. Both the short-term and long-term notes payable are dated January 1,2025, and carry a 10\% interest rate. All interest is payable in the next 12 months. 10 Income tax expense was $27,000. It was unpaid at December 31. The following transactions occurred during December. Dec. 2 Purchased equipment for $28,800, plus sales taxes of $1,440 (paid in cash). 2 Flint sold for $6,300 equipment which originally cost $9,000. Accumulated depreciation on this equipment at January 1 , 2025 , was $3,240;2025 depreciation prior to the sale of equipment was $1,485. 15 Flint sold for $9,000 on account inventory that cost $6,300. (Flint records sales under a perpetual inventory system.) 23 Salaries and wages of $11,880 were paid. Adjustment data: 1. Flint estimates that uncollectible accounts receivable at year-end are $7,200. 2. The note receivable is a one-year, 8% note dated April 1, 2025. No interest has been recorded. 3. The balance in prepaid insurance represents payment of a \$6,480, 6-month premium on September 1, 2025. 4. The building is being depreciated using the straight-line method over 30 years. The salvage value is $54,000. 5. The equipment owned prior to this year is being depreciated using the straight-line method over 5 years. The salvage value is 10% of cost. Totals Flint Cornnration's unadiusted trial halanre at neramher 12025 is nrecented below. Prepare an adiusted trial balance at December 31. 2025