Assuming you've got a deck of 40 cards (Ace, 2,3,4,5,6,7,jack,queen,king of 4 colors): How many hands of 10 cards can you make, where you need to have at least one jack and one king, that must be of the same color? Here's how I tried to answer this question.
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ok i dont know how to do percents and i need to know if a girl reads 9 pages and it eguals 20 percent how much is in her 
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