This corporation sells office products and performs accounting services S & B uses the Perpetual Inventory system and had the following balances: S & B Office Suppli Trial Balance November 1, 2017 es and Services Title Debit Credit Cash 9,000 Accounts Receivable 2,240 Supplies 860 Equipment 25,000 Accumulated Depreciation 1,000 Accounts Payable 3,400 Unearned Service Revenue 4,000