Which operations can be used to solve this problem? lulu bought 2 blouses for $24 each and 3 pairs of socks for $7 each, tax included. how much change would she receive if she paid with bills totaling $80? choose exactly two answers that are correct. a. division b. multiplication c. subtraction

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.