Question
Will strings some silver and black buttons to make a bracelet. For every 5 silver buttons Will uses, he uses 7 black buttons. He uses a total of 108 silver and black buttons for the bracelet. How many more black buttons than silver buttons does he use?
4 m

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Will strings some silver and black buttons to make a bracelet. For every 5 silver buttons Will uses, he uses 7 black buttons. He uses a total of 108 silver and black buttons for the bracelet. How many more black buttons than silver buttons does he use?