Hi and Welcome Back to YT!
1. Does Jazzie look pure yorkie to you? It doesn't matter to me, just curious.
Yes.
2. If you think she is pure yorke, is she a silky yorkie or what? Sorry, I've never had a pure yorkie before so I'm pretty clueless as to the cotton coat ones and the silkies.
She does appear to have a silky coat.
3. How often should she be bathed?
Weekly or every two weeks
4. How long will it take her hair to grow out in the back on her tooshy? The lady said she held Jazzie while the males took turns at her

got tired of holding her hair and just whacked it off. It's all uneven and stuff (again, I don't care, just curious as to how long it'll take to grow back out?)
probably about 4-8 months... good nutrition will help
5. Has anyone every used the Tropiclean tooth gel? I got it last night and supposedly you don't actually have to use a toothbrush with it, the gel coats the teeth and removes tarter build up. She's so not a fan of having her teeth brushed (which is why I decided to try this gel, no need for brushing.) Mags LOVES to have hers done with a tooth brush, even holds the brush like she's helping, lol.
All tooth gels work with enzyme action and are all about the same... good choice for pups who won't tolerate brushing
Good Luck with your new baby... she's beautiful!