1. Suppose the wholesale price of a certain brand of medium-sized eggs p (in dollars/carton) is related to the weekly supply x (in thousands of cartons) by the following equation: 625p2-X2 = 100 If 35000 cartons of eggs are available at the beginning of a certain week and the price is falling at the rate of 9c/carton/week, at what rate is the supply changing?