81. Why do accountants use the matching principle when deciding how to record economic events? Briefly explain the matching principle as it applies to revenues and expenses. 82. Identify three...

81. Why do accountants use the matching principle when deciding how to record economic events? Briefly explain the matching principle as it applies to revenues and expenses.

82. Identify three different points in time that an expense could be recognized relative to when it is paid. Give an example of each.

83. Identify three different points in time that revenue could be recognized relative to when the payment is received. Give an example of each.