the list shows the amount of juice 3 friends drank. owen 5/0, nora 8/10, john 3/10. how much more did nora drink than owen (liters)

Can you simplify 4/7? 24 points will be awarded!

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.

Me d is also an option but i couldn't get it in the picture