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Answer:
B
Step-by-step explanation:
You substitute first
[tex]11\frac{1}{2} + 6(-4\frac{2}{3}) = 11\frac{1}{2} + 6(-\frac{14}{3}) = 11\frac{1}{2} + (-\frac{84}{3}) = 11\frac{1}{2} -28 = -16 \frac{1}{2}[/tex]
B