2 Selling, general, and administrative expenses were $187,000; net sales were $850,000; interest expense was $20,400; research and development expenses were $89,250; net cash provided by operating activities was $225,700; income tax expense was $19,040; cost of goods sold was $467,500. Required: a. Calculate operating income for the period. X 01:58:36 eBook Operating expenses: b. Calculate net income for the period