Question
Xandra bought 9 packs of cards. There were 34 cards in each pack. After she had given 143 cards to Risa, 40 to Japheth and some to Sam, she had 29 of the cards left. How many cards did she give to Sam?
4 m

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Xandra bought 9 packs of cards. There were 34 cards in each pack. After she had given 143 cards to Risa, 40 to Japheth and some to Sam, she had 29 of the cards left. How many cards did she give to Sam?