The price-demand equation for a particular flashlight is given by p = 114 -0.004x, where x is the number of flashlights demanded when the price is p dollars each. The flashlight manufacturers will produce no flashlights if the price is $78 or less, and they will market 7,000 flashlights when the price is $106 per flashlight. (Assume the price-supply equation is linear.) (a) Find the consumers' surplus for this commodity. (b) Find the producers' surplus for this commodity.