Selling, general, and administrative expenses were $66,000; net sales were $300,000: interest expense was $7,100: 9.2 research and development expenses were $31,500: net cash provided by operating 1.0 5 activities was $79,200; net income was $16.800; income tax expense was $7,600: cost of goods sold was $165.000.

Required:

a. Calculate operating income for the period.

b. Calculate net income for the period.