Sales of the Text "Calculus and You" Have Been Declining

Multiple Choice

Sales of the text "Calculus and You" have been declining continuously at an annual rate of 8%. Assuming that "Calculus and You" currently sell 800 copies per year and that sales will continue this pattern of decline, calculate total future sales of the text. Use the formula for continuously compounded interest with a negative rate. ​

A) 100,000 copies
B) 80,000 copies
C) 10,000 copies
D) 250,000 copies
E) 500,000 copies