There are 50 seats on a train. 70% of the seats are empty. How many empty seats are there on the train?
empty seats
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Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below.

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.

Write the equation in logarithmic form m^x=n