What is a secret, at least to nave gamblers, is that in the rael world, a casino does much better than expected values suggest. In fact, casinos keep a bit over 20% of the money gamblers spend on roulette chips. Thats because players who win keep on playing. Think of a player who gets back exactly 95% of each dollar bet. After one bet, he has 95 cents.

A. After two bets, how much does he have of his original dollar bet?

B. After three bets, how much does he have of his original dollar bet?