last year sanderson, Inc. had sales of 3 million. The firms cost of goods sold came to 2 million, operating expenses excluding depreciation of 100,000 were 400,000 and the firm paid 150,000 in interest on its bank loans. Also, the corperation recieved 50,000 in dividend income (from a company in which it owned less than 20 percent of its shares) but paid 25,000 in the form dividends to its own common stock holders. calculate the corperations tax liability. what are the firms average and marginal tax rates?