Business Calc Question!!!!
Suppose the quantity demanded weekly of Super Titan radial tires is related to its unit price by the equation, p+x^2 =144 where p is unit price measured in dollars and x is measured in units of a thousand. How fast is the quantity demanded weekly changing when the unit price per tire is 63 and the price per tire is increasing at a rate of $2 per week? Is it increasing or decreasin?