It is possible that they are AC, Archie may have to chime in on the final result, but I seem to remember quite a few years ago when I was at Harrah's, I took a "craps class" where they went through the different betting areas, etc. I remember seeing "instructional" on the chip but cannot 100% say it was this one.

As for roulette - you'll have to ask Archie or BriaN.