The volume of this rectangular prism is 6x2. What does the coefficient 6 mean in terms of the problem?
height = x
width = X
length = 6x
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A. The length of the prism is 6 units.
B. The total volume of the prism is 6 cubic units.
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C. The length is 6 times the width.
D. The width is 6 times the height and the length.

If m∠abc = 70°, what is m∠abd? justify your reasoning.  using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°.  using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°.  using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality.  using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.