(a)A child has a box full of colored building blocks. If he chooses one block without looking, the probability of choosing a green block is 6/17. What are the odds against choosing a green block?
(b) Bill is playing a role-playing game with his friends. He will roll dice to determine if his character casts a spell. The odds in favor of his character casting a spell are 11/8. Find the probability of his character casting a spell.
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