Question
Ian strings some blue and grey seashells to make a necklace. For every 2 blue seashells Ian uses, he uses 9 grey seashells. He uses a total of 88 blue and grey seashells for the necklace. How many more grey seashells than blue seashells does he use?
4 m

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Ian strings some blue and grey seashells to make a necklace. For every 2 blue seashells Ian uses, he uses 9 grey seashells. He uses a total of 88 blue and grey seashells for the necklace. How many more grey seashells than blue seashells does he use?