Can someone explain to me what "back" and "lay" mean in sports betting?

[CFH]

Shift and the number 3 at the same time, also mate im sorry to burst your bubble, but i think you reading the odds wrong which i use to do with decimal odds, the odds of 1.1 means its 1/10 meaning for every £10 you wage you are getting £1 + your £10, not £11 + your £10 stake as you probably thought??

Bummer aint it i use to think the same i hate decimal odds fractions are much better old school .

I assumed the odds were the same as in Killer's sportsbook, thus I thought 1.1 meant I would make 1.1 dollar/pound for every dollar/pound wagered. Damn it.

I just get the # symbol by pressing shift + 3. Maybe keyboards sold in the UK are different?

Maybe the keyboards are different mate, errr on my keyboard the £ sign is on the 3 key but its shift and wherever the £ symbol appears on our keyboards in the uk.

I just looked it up, and UK keyboards are slightly different. I find that interesting for some odd reason:

UK:
http://upload.wikimedia.org/wikipedi...ed_Kingdom.svg

American:
http://upload.wikimedia.org/wikipedi...es-NoAltGr.svg