The trail balance for LB corp has the following balances in selected accounts on December 31, 2019. Accounts Receivable $0 0 6,650 0 Accumulated Depreciation - Equipment Equipment Interest Payable Notes Payable Prepaid Insurance Salaries and Wages Payable Supplies Unearned Service Revenue 20,000 2,220 0 2,940 30,000 All of the accounts have normal balances. The information below has been gathered at December 31, 2019. Prepare the adjusting entry: 6. On December 1, 2019, LB Corp. collected $30,000 for disinfecting processes to be performed from December 1, 2019, through May 31, 2019