38 dogs are in a kennel. 21 of the dogs are black, y11 of the dogs have
short tails and 16 of the dogs have
long hair. There are 3 dogs that are
black with a short tail and long hair. 7
of the dogs are black with short tails.
Four of the dogs have short tails and
long hair. Eight of the dogs have none
of these characteristics. How many
dogs are black with long hair?