Suppose the quantity demanded weekly of the Super Titan radial tires is related to its unit price by the equation

p+x²=196

wherepis measured in dollars andxis measured in units of a thousand. How fast is the quantity demanded weekly changing when

x=10,

p=96,

and the priceper tireis increasing at the rate of$2/week?(Round your answer to the nearest tire.)

___________ tires/week