Assume that a company provided the following statement of cash flows $($all sales are on account$)$:

Operating activities:

Net income $ $46$

Adjustments to convert net income to a cash basis:

Depreciation $ $15$

Decrease in accounts receivable $2$

Increase in inventory $(10)$

Increase in accounts payable $411$

Net cash provided by $($used in$)$ operating activities $57$

Investing activities:

Additions to property, plant, & equipment $(40)$

Net cash provided by $($used in$)$ investing activities $(40)$

Financing activities:

Issuance of common stock $5$

Cash dividends paid $(15)$

Net cash provided by $($used in$)$ financing activities $(10)$

Net increase in cash and cash equivalents $7$

Beginning cash and cash equivalents $6$

Ending cash and cash equivalents $ $13$

How much is the company$$s free cash flow?