Selling, general, and administrative expenses were $65,000; net sales were $295,100; interest expense was $6,900; research and development expenses were $30,200; net cash provided by operating activities was $75,900; income tax expense was $7,300; cost of goods sold was $158,700. Required: a. Calculate operating income for the period. b. Calculate net income for the period. Complete this question by entering your answers in the tabs below. Calculate operating income for the period. Selling, general, and administrative expenses were $65,000; net sales were $295,100; interest expense was $6,900; research and development expenses were $30,200; net cash provided by operating activities was $75,900; income tax expense was $7,300; cost of goods sold was $158,700. Required: a. Calculate operating income for the period. b. Calculate net income for the period. Complete this question by entering your answers in the tabs below. Calculate net income for the period