Depreciation and accounting cash flow A firm has gathered the following data for its current year's operations.The firm has only one asset, which has a 3-year recovery period. The cost of the asset a year ago was $165000. The depreciation rate is 45%

Accruals - $12500

Current assets - 135,000

Interest expense - 13,550

sales revenue- 420,000

inventory- 82,300

Total costs before depreciation,interest, and taxes - 295,000

tax rate on ordinary income - 40%

a. Calculate the firm's operating cash flow for the current year

b. why is it important to add back noncash items such as depreciation when calculating cash flows?