Below is the balance sheet for Northern Comfort Company for December 31 of 2021 and 2022.

	2021	2022			2021	2022
Cash	900	1,100		Accounts payable	2,700	3,300
Accounts receivable	2,700	3,300		Current liabilities	2,700	3,300
Inventory	2,700	3,300		Long-term debt	5,400	6,600
Current assets	6,300	7,700		Total liabilities	8,100	9,900
Net fixed assets	11,700	14,300		Equity	9,900	12,100
Total assets	18,000	22,000		Total liab. & equity	18,000	22,000

The income statement is also given:

	2022
Sales	52,800
Cost	29,040
Depreciation	7,920
EBIT	15,840
Interest	5,280
EBT	10,560
Taxes (32%)	3,379
Net income	7,181

What was NOPAT + depreciation for 2022?

What was the change in net operating working capital in 2022?

What was capital expenditure in 2022?

What was the free cash flow in 2022?