I got both Ninetales, regular and the alola kind, they are male and female so if I breed them would they be mix breeds, or they be same as one of their parents and could use some of their other parents typing?

Ah, as I’ve said in another ask (which I admit is in queue as of this writing), it depends on the environment in which the egg is laid and whether or not either parent is holding an everstone. If the egg is laid in Alola, then the specific environmental conditions unique to Alola will cause the genes inherited from the Alolan parent to express themselves, resulting in an Alolan vulpix, whereas if the couple lays an egg anywhere else, the standard-form parent’s genes will be expressed instead, which will result in a standard-form vulpix. However, if one parent holds an everstone, then the genes of that parent will express themselves over the ones inherited from the other parent, regardless of where the nest is located. For example, if you give a standard-form ninetales an everstone and allow your pokémon to mate in Alola, then the resulting hatchling will be a fire-type, rather than an ice-type.

Incidentally, should anyone be curious, this phenomenon does not occur if both parents are of the same variation, likely due to the lack of variant genetics in the combination. For example, if both of a trainer’s ninetales are of the Alolan breed, then the resulting hatchling will be an Alolan vulpix, even if the nest is located in Kanto.