Solve the inequality and graph
2(-6n-5)< -3(4n+2)
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The holiday party will cost $160 if 8 people attend. if there are 40 people who attend the party, how much will the holiday party cost

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.

The longer leg of a 30-60-90 trangle is 18