At 29:47 -Zari gets into the back, right-hand seat of Freddy's limo and at 30:00 she has disappeared.
At the Prom, one of the bullies throws a glass of red punch at Freddy's white shirt. After the Prom, his shirt is white again with no stain. This however is due to Nora's powers as Fairy Godmother when she sets up his musical dance piece.
Mick says he went to High School in 1989, but in 1989 he would have been no older then 12 years old as the show has already stated he was born in 1977.