2 Complicated Calculations

1. On page 330 of Stanford Wong's Professional Blackjack book, if you have a face card and a 6 against the dealer's 7, you can expect to lose 40.8% of your wager. How much more would your expected loss be if your hand was made up of 4 cards? [e.g. 5-4-3-4]

2. If you are using 6 decks of cards, what percentage of player's hands can be expected to include 4 cards or more?