Jennifer needs 1/8 yard of red ribbon, 1/4 yard of blue ribbon, and 1/2 yard of green ribbon. She estimates that she needs about 1/2 yard of ribbon in all. Is she right? How close to the actual answer is her estimate?

Is the following relation a function? x y 1 4 −1 −2 3 10 5 16 yes no

This is different from the first one can someone me

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.