The equation d=0.3t determines the distance ,d, in km a marathon runner is from her starting point at any time ,t, in minutes. To the nearest minute, how long in hours does it take the runner to be 37 km from her starting point?

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer

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.

In the diagram of circle o, what is the measure of zabc?