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2.) For a certain good, when the good’s price falls from $22 to $20, its quantity...

2.) For a certain good, when the good’s price falls from $22 to $20, its quantity demanded rises from 2,000 to 2,200 units. Given this information, find the price elasticity of demand two different ways. First, use the elasticity of demand formula. Second, use the total revenue test. You must use both methods. show all work for credit.

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