Question
Eric wanted to buy some potato starch. He will have $16 left if he buys 4 kg of potato starch. However, he will need $6 more to buy 6 kg of potato starch. What is the cost of 9 kg of potato starch?
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Eric wanted to buy some potato starch. He will have $16 left if he buys 4 kg of potato starch. However, he will need $6 more to buy 6 kg of potato starch. What is the cost of 9 kg of potato starch?