Review and analyze the notes for the financial statements for your selected corporation. In what note number did you find the amount for Allowance for Doubtful Accounts? What was the amount for Allowance for Doubtful Accounts for year end in both of the two years preceding the current year? What does this tell you? Give your reasoning and support your assertions with your research.

Explain unearned revenues and how unearned revenues arise.
Explain what a warranty is and when businesses record warranty expense, and why.