A telephone solicitor is responsible for canvassing three suburbs. In the past, 60% of the completed calls to Belle Meade have resulted in contributions, compared to 55% for Oak Hill and 35% for Antioch. Her list of tele- phone numbers includes one thousand households from Belle Meade, one thousand from Oak Hill, and two thou- sand from Antioch. Suppose that she picks a number at random from the list and places the call. What is the probability that she gets a donation?