Interpreting absolute value Jack, Oliver, and Nate all started at the same weight at the beginning of the year. The table below reports their
change in weight since then.
Name
Change in weight (in kg)
1
Jack
Oliver
Nate
-2
Sort the boys from least to greatest absolute value of change in weight. Click and drag to sort the tiles.
Nate
Oliver
Jack

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.