Help with the ones I got wrong?

Problem 20-15 (Algo) Correction of errors; six errors [LO20-6] Conrad Playground Supply underwent a restructuring in 2021. The company conducted a thorough internal audit, during which the following facts were discovered. The audit occurred during 2021 before any adjusting entries or closing entries are prepared. a. Additional computers were acquired at the beginning of 2019 and added to the company's office network. The $46,500 cost of the computers was inadvertently recorded as maintenance expense. Computers have five-year useful lives and no material salvage value. This class of equipment is depreciated by the straight-line method. b. Two weeks prior to the audit, the company paid $18,500 for assembly tools and recorded the expenditure as office supplies. The error was discovered a week later. c. On December 31, 2020, merchandise inventory was understated by $81,000 due to a mistake in the physical inventory count. The company uses the periodic inventory system. d. Two years earlier, the company recorded a 4% stock dividend (2,300 common shares, $1 par) as follows: 2,300 Retained earnings Common stock 2,300 The shares had a market price at the time of $12 per share. e. At the end of 2020, the company failed to accrue $110,000 of interest expense that accrued during the last four months of 2020 on bonds payable. The bonds, which were issued at face value, mature in 2025. The following entry was recorded on March 1, 2021, when the semiannual interest was paid, as well as on September 1 of each year: Interest expense Cash 165,000 165,000 f. A three-year liability insurance policy was purchased at the beginning of 2020 for $72,900. The full premium was debited to insurance expense at the time. Required: For each error, prepare any journal entry necessary to correct the error, as well as any year-end adjusting entry for 2021 related to the situation described. (Ignore income taxes.) (If no entry is required for a transaction/event, select "No journal entry required" in the first account field.) No Transaction General Journal Debit Credit 1 a(1) X Depreciation expense Equipment Operating expenses 27,900 % 18,600 X X 46,500 X 2 a(2) X 18,500 X Operating expenses Office supplies x 18,500 X 3 b(1) X 81,000 X Inventory Inventory X 81,000 X 4 b(2) X 25,300 Retained earnings Paid-in capital - excess of par X 25,300 X 5 c(1) No journal entry required x X x 6 c(2) Prepaid insurance X 48,600 Insurance expense 48,600 7 d(1) Insurance expense x 24,300 X Prepaid insurance X 24,300 X Jin . : lo Inventory 81,000 4 b(2) x 25.300 X Retained earnings Paid-in capital - excess of par x 25,300 X 5 c(1) No journal entry required X X x x warded ed 6 c(2) 48,600 Prepaid insurance Insurance expense 48,600 7 d(1) Insurance expense x 24,300 X Prepaid insurance x 24,300 X 8 d(2) No journal entry required 9 e(1) No journal entry required X X x x 10 e(2) No journal entry required x X X X 11 f(1) No journal entry required X x x 12 f(2) No journal entry required x X *Red text indicates no response was expected in a cell or a formula-based calculation is incorrect; no points deducted