Aschool is sending 6 teachers and some students to attend a technology fair. the admission price for teachers in $8.50 each and the admission price for students is $6 each. if the budget set aside by the school for this event is $250, at most how many students can attend the fair?

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.