Finance 4

S&J Plumbing, Inc.'s 2010 income statement shows a net profit before tax of $468, whereas the balance sheet that the company's equity for the fiscal year-end 2010 is $1,746. 

• Calculate the company's return on equity and explain whether the managers are providing a good return on the capital provided by the company’s shareholders. 
• Diagram and explain the operating cycle of a service company.