Simplify the expression. (2b/3)^ 4. a. 6b^4 b.8b^4/12. c.16b^ 4/ 81. d. 16b^4/3.

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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.

What is 1.5% of 120 or what number is 1.5% of 120