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Mathematics, 05.07.2019 14:30 KKHeffner02

What is the correct substitution? evaluate. 3m when m = -9 and n = -2 a.3(-) b.3() c.3(-)

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What is the correct substitution? evaluate. 3m when m = -9 and n = -2 a.3(-) b.3() c.3(-)...
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