Hurry how many different 4-letter
license plates can be made
using only the letters m, a, t,
and h? all four letters must be
used on each plate.

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.

The sum of 5consecutive even numbers is 100. what is the first number in this sequence?

15. if the 8% tax on an item amounts to $0.96, what is the final price (tax included) of the item?