at -110 if u lost 11 u need to win 21 on bet b to get back the 11 plus one unit or 10....so 21 x1.10 would be risk amount to win 21 on bet B or 23.10 to win 21..if bet b lost u would be down 11 (A) + 23.10 (B) or 34.10 ... so u have to wager to win 44.10 to win back losses + one unit (10) or 48.51 to win 44.10 on gm3 or C bet