15. Bestway, Inc. had credit sales of $142,000 for the period. The balance in Allowance for Doubtful Accounts is a debit of $643. If Bestway estimates that 2% of credit sales will be uncollectible, what is the required journal entry to record estimated uncollectible accounts? 16. An asset has a cost of $50,000, with a residual value of $10,000. It has a life of 5 years and was purchased on January 1. Under double-declining-balance, what is the asset's fourth full year of depreciation expense? 17. A truck costing $56,000 has accumulated depreciation of $50,000. The truck is sold for $8,500. What is the journal entry for this transaction? 18. On January 1, Bixby Machine signed a $210,000, 696, 30-year mortgage that requires semiannual payments of $7,585 on June 30 and December 31 of each year. What is the correct journal entry for recording the second semiannual payment (round interest calculation to the nearest dollar)? 19. On January 1, $500,000 of 8%, 10-year bonds were sold for $530,000. The bonds require semiannual interest payments on June 30 and December 31. What is the correct entry for recording the June 30 interest payment on the bonds? 20. Motor Works, Inc. has declared a $20,000 cash dividend to shareholders. The company has 5,000 shares of $15-par, 10% preferred stock and 10,000 shares of $20-par common stock. The preferred stock is non-cumulative. How much will the preferred and common stockholders receive on the date of payment