###Human: The post office receives 60 letters and 20 packages per day. How many pieces of mail does it handle in six months if all the months have 30 days?, ### Assistant: First find the total number of pieces of mail the post office receives per day: 60 letters + 20 packages = 80 pieces of mail
Then multiply the daily amount of mail by the number of days per month: 80 pieces/day * 30 days/month = 2400 pieces/month
Then multiply that number by 6 to find the total number of pieces of mail handled: 2400 pieces/month * 6 months = 14400 pieces 
 So the answer is :  14400