What is what breed is my tuxedo cat?

As an AI language model, I do not have any information about your specific tuxedo cat. However, tuxedo cats are not a specific breed, but rather a type of coat pattern. They are typically black and white, with the black color being concentrated on the head, back, and tail, while the white is on the chest, belly, and paws. Tuxedo cats can come from various breeds, such as domestic shorthair, domestic longhair, Maine Coon, and others. Without knowing the specific breed of your tuxedo cat, it's impossible to provide more details.