(Working with financial statements) Given the balance sheet, , and income statement, for Knapp Inc: a. How much is the firm's net working capital and what is the debt ratio? b. Complete a common-sized income statement, a common-sized balance sheet, and a statement of cash flows for 2018 Data table Plant and equipment Knapp Inc. Income Statement for Years Ended 1/31/2017 and 1/31/2018