12/31 Adjusting Entries-remember that JHA adjusts its books monthly a) Adjust for services earned on 12/1 collection of $8,000-the-month contract b) The accountant remembered that rent was paid on December 1 in advance for four months Prepare the necessary adjust c) Accrue interest on the note payable signed on 12/16. (Principal $20,000, 6% annual interest rate, 1-year term) d) Accrue interest on the note receivable received on 12/20. (Principal $12,000, 8% annual interest rate, 30-day term.) Round so the nearest dollar e) Record straight-line depreciation on office equipment with a cost of $18,000, a 5-year expected life and an estimated salvage value of $3,000