Answer:
Explanation:
Angles (8x - 12) and 104 are "straight angles;" their sum is 180 degrees.
Therefore, 8x - 12 + 104 = 180, or 8x - 12 = 76, or 8x = 88.
Dividing both sides by 8, we get x = 11
Angles z and 104 are vertical angles and are thus equal to one another. Thus, z = 104 degrees