Answer:
z = 155 ( second choice )
Step-by-step explanation:
x = 25
65 + 90 = 155
180 - 155 = 25 = x
180 - 25 = 155 = z
r > 17
r -7> 10
Add 7 to each side
r-7+7 > 10+7
4.78
1202.17/251.5 = 4.78
4.78 per unit