8-9/4. A capacitor, an electric resistance heater, and an impedance are connected in parallel to a 120-V, 60-Hz system. The capacitor draws 50 var, the heater draws 100 W, and the impedance draws 26 VA at a power factor of 0.74 lagging. Sketch the circuit and determine (a) the system active power; (b) the system reactive power; (c) the system apparent power; (d) the system power factor.