Butterfly Tractors had $17.50 million in sales last year, Cost of goods sold was $870 million, depreciation expense was $270 million, Interest payment on outstanding debt was $170 million, and the firm's tax rate was 21% a. What was the firm's net income? (Enter your answers in millions rounded to 2 decimal places.) b. What was the firm's cash flow? (Enter your answers in millions rounded to 2 decimal places.) c. What would happen to net income and cash flow if depreciation were increased by $170 millon? (Enter your numeric answers in millions rounded to 2 decimal places. Select "unaffected" If the results do not affect the balance.) What would be the impact on cash flow if depreciation was $1.70 million and interest expense was $2.70 million? (Enter your numeric answer in millions rounded to 2 decimal places. Select "unoffected" If the results do not affect the balance.) million million a. Net income b.Net cash flow Not income would be Cash flow would be Cash flow would be milion by by by milion milion