. A non-profit organization is hosting an event “Jog for Hunger”. They’re making 4-character tags for participants. The first and last characters are made of letters from A-Z and the middles characters are made of numbers from 0-9. How many different tags can they make in total? Assuming all the characters and numbers can be repeated.

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.