Answer:
a. income from operations = Revenue - Cost of Goods Sold - Selling and Administrative Expenses
Income from operations = 310,000 - 140,000 - 50,000
Income from operations = 120,000
b. net income = income from operations + gain on sale of plant assets - loss on discontinued operations - interest expense
Net income = 120,000 + 30,000 - 12,000 - 6,000
Net income = 132,000
c. comprehensive income = net income + unrealized gain on available-for-sale debt investments
Comprehensive income = 132,000 + 10,000
Comprehensive income = 142,000
d. retained earnings balance at December 31, 2020.
Retained earnings = Net Income - Dividends declared and paid
Retained Earnings = 132,000 - 5,000
Retained Earnings = 127,000