The unadjusted trial balance of Flint Inc., at the company's year end of December 31, follows: Flint INC. Trial Balance December 31, 2021 Debit Credit Cash $35,560 Accounts receivable 31,400 Inventory 28,900 Supplies 3,100 Prepaid insurance 2,700 Land 28,000 Buildings 136,000 Accumulated depreciation-buildings $21.760