Can you show me how to solve this ? with the formula?

How much did Dewey Finn Corp. pay in cash for purchases of inventory during 2020? (just enter the number, without any commas or a dollar sign) Financial Statements for 2020 Balance Sheet Income Statement Assets 2020 2019 Sales Revenue $ 230,000 Cash 62,000 $ 48,000 Cost of Goods Sold $ (135,000) Accounts Receivable, Net 26,000 $ 23,000 Wages Expense $ (18,000) Inventory 22,000 $ 32,000 Rent Expense S (10,000) Prepaid Rent 40,000 $ 20,000 Bad Debt Expense (2,000) Equipment, Net 72,000 $ 80,000 R&D Expense S (20,000) Land 30,000 40,000 Depreciation Expense (8,000) Total Assets $ 252,000 $ 243,000 Interest Expense (4,000) Gain on Sale of Land 3,000 Liabilities and Equity 2020 2019 Income Tax Expense (5,000) Accounts Payable 28,000 $ 24,000 Net Income 31,000 Wages Payable 23,000 $ 17,000 Income Tax Payable 1,000 $ 8,000 Long-Term Debt 38,000 $ 38,000 Contributed Capital 120,000 $ 120,000 Retained Earnings 42,000 $ 36,000 Total Liabilities and Equity $ 252,000 $ 243,000