The white one in the middle of the first picture is an EE. Pretty green legs and a cute little muff going on there.
So there's one right. The one in the back of the second picture has that little stripe on its head which reminds me of Production Reds (hatcheries call them RIR, and that's what the feed stores call 'em too). So that's probably the one sold to you as RIR. The other 2 would be the Golden Sexlinks then, and if that's the case, then it looks like you have 1 male and 1 female. Sex linked crosses are bred so you can tell the gender by their color. In Golden and Red Sexlinks, pullets are red and cockerels are white. (If you're curious about the Black Sexlink, males are barred and females are black with gold leakage. https://www.backyardchickens.com/forum/viewtopic.php?id=261208) Sexlinks don't breed true, by the way.
