Piper and her children went into a movie theater and she bought $59.50 worth of bags of popcorn and candies. Each bag of popcorn costs $8.50 and each candy costs $4.25. She bought 8 more candies than bags of popcorn. Graphically solve a system of equations in order to determine the number of bags of popcorn, x, and the number of candies, ,y, that Piper bought. plot on a graph

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.