Question
Flynn wanted to buy some rice. He will have $18 left if he buys 2 kg of rice. However, he will need $7 more to buy 7 kg of rice. What is the cost of 4 kg of rice?
4 m

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Flynn wanted to buy some rice. He will have $18 left if he buys 2 kg of rice. However, he will need $7 more to buy 7 kg of rice. What is the cost of 4 kg of rice?