Mathematics, 29.06.2019 22:00 biasmi70

Ben is making math manipulatives to sell. he wants to make at least $450.each manipulative costs $18 to make. he is selling the for $30 each. what is the minimum number he can sell to reach his goal?

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Ben is making math manipulatives to sell. he wants to make at least $450.each manipulative costs $18...