If \(m^2<225\) and \(n-m=-10,\) what is the difference between the smallest possible integer value of \(3m+2n\) and the

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If \(m^2<225\) and \(n-m=-10,\) what is the difference between the smallest possible integer value of \(3m+2n\) and the greatest possible integer value of \(3m+2n?\)

A. -190
B. -188
C. -150
D. -148
E. -40

Answer: D

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