12. Shannon's new car sold for $21,000. Her online research indicates that the car will depreciate exponentially at a rate of 81% per year. Write the exponential depreciation formula for Shannon's car. A. y 21,000(0.9175)* B. y 21,000(1-0.9475)* C. y=(1-0.0825)* D. y=28,000(0.0825)*

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