In this post-closing trial balance where does the $10,040 comes from?

J &L Accounting, Inc. Post-Closing Trial Balance As of January 31, 2015 BALANCE ACCOUNT TITLE Cash DEBIT CREDIT Account Receivable $10,040.00 Prepaid Rent $3,750.00 Vehicle $11,000.00 $48,000.00 Accumulated Depreciation, Vehicle $13,000.00 Equipment $3,600.00 Accumulated Depreciation, Equipment $700.00 Account Payable $1,425.00 Common Stock $38,000.00 Retained Earnings $23,265.00 TOTALS $76,390.00 $76,390.00