Product WB currently sells for $13 per unit. Annual demand at that price is 20,000 units. If the price increases to $15, the annual demand falls by 500 units.
I'm not sure about this one. There's a lot of information to unpack. Maybe I should review the concept of demand curves again before attempting this question.
A seems like the right formula, with Q representing quantity and P representing price. The given information about the demand changes with price suggests a linear demand curve.
Ardella
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