The following information is available for a company's utility cost for operating its machines over the last four months. Month Machine hours Utility cost January 1,000 $ 6,000 February 1,900 $ 7,100 March 2,600 $ 8,100 April 700 $ 4,350 Using the high-low method, the estimated variable cost per machine hour for utilities is:

The year-end financial statements of calloway company contained the following elements and corresponding amounts: assets = $34,000; liabilities = ? ; common stock = $6,400; revenue = $13,800; dividends = $1,450; beginning retained earnings = $4,450; ending retained earnings = $8,400. based on this information, the amount of expenses on calloway's income statement was