2.It is a hybrid because Hh has a dominant trait which is H so the cat is born to be a short haired cat but it is not purely dominant which turns the second cat into a pure recessive
3.All the offspring would be short-haired cats because they would all end up being pure dominant meaning the next generation would be hybrid and not pure anymore
4.The black horse is a hybrid because Bb+bb=Bb and since the allele for the black coat is more dominant then it would be a hybrid
5.It is a hybrid because it is a mix between both a recessive trait and dominant trait and you can only have a pure dominant when it is a cross between two dominants