What is the scale factor of this dilation?
A. 2/3
B. 1 1/2
C. 3
D. 5

Anyone know? will mark brainliest if correct

Which of the following values are in the range of the function graphed below? check all that apply ! - will give the answer "brainliest! "

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.