my dog

Question
i have a 3 month old blue nose pit puppy i just wanted to know on average how much is he supposed to weigh.

Answer
I can't tell you what the average should be.  Even if I could, it might not help you decide how much to feed your puppy.  Your dog definitely should be narrower at the waist than the hips and chest.
You should be able to easily feel the ribs, but not see them.  Each dog is
different.  Standard recommendations are a good place to start, but each dog
must have its food adjusted to its individual needs. Here is a link to a good illustrated guide,
http://www.longliveyourdog.com/twoplus/RateYourDog.aspx