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Decide whether the pair of lines is parallel, perpendicular, or neither.
-The line through (-12, 5) and (-4, 7) and the line through (5, 6) and (7, -2)
Milligram
A unit of mass equal to one thousandth of a gram, often used in medicine to specify drug dosages.
Grain
A unit of measure traditionally used in pharmacology and jewelry, equal to approximately 0.065 grams.
Milligram
A unit of mass equal to one thousandth of a gram.
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