N Selling, general, and administrative expenses were $71,000; net sales were $322,500; Interest expense was $7,600; research and development expenses were $33,500; net cash provided by operating activities was $84,200; Income tax expense was $8,100; cost of goods sold was $176,000. 5 points Required: a. Calculate operating Income for the period. Skipped eBook 0 Operating expenses: Hint Ask Print References b. Calculate net Income for the period. Interest expense 0 Income tax expense