The demand equation for the Sicard wristwatch is given by 
, 
, where x (measured in units of a thousand) is the quantity demanded each week and p is the unit price in dollars. Find the rate of change of the quantity
demanded of the wristwatches with respect to the unit price when the unit price is $10. Round your answer to the nearest whole number.
?
A. 
wristwatches/(dollar price increase)
B. 
wristwatches/(dollar price increase)
C. 
wristwatches/(dollar price increase)
D. 
wristwatches/(dollar price increase)
Answer: D
Mathematics
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