Hey
@Moralitee, I agree with
@Shockolateman08 , try to gently shake the cup theyre in or gently poke them and they should sink. Even if they dont, give them a chance via paper towel method or put them in soil anyway (whatever way of germinating you prefer). What I learned from my very few grows already is, that just because a seed seems dead, it doesnt have to be. Just treat the floating ones as normal and most of the times they still germinate :)
Hope I could help, cheers and good luck !