Wagering Definitions

[fmc123412]

People,

I am from Brazil, and here there is no official gambling. And I also dont know any local online gambling website

So, I am basically with 2 problems:

- Firts, I don´t understand some wagering deffinitions like: if bets, rollover, money line, parlays, spread, etc.

- Second, I don´t understand the pricing system (In a soccer match, for instance: +1/2 1.1570....this means greek to me) and horse racing princing systems. So, I cannot measure my spents when doing a bet nor my return when I win some wagering.

Can anybody tell me a good internet resource where I cand read about this and understand all these terms and calculus?

Thank you very much!