During 2023 , Ewha Corp had sales of $650,000. Cost of goods sold, administrative and selling expenses, and depreciation expenses were $540,000,$85,000, and $135,000, respectively. In addition, the company had an interest expense of $75,000 and a tax rate of 35 percent. (Ignore any tax loss carryback of carry forward provisions.) a. What is Ewha Corp's net income for 2023? b. What is its operating cash flow