Answer:

Step-by-step explanation:
h + 4 ≤ 20
Subtract 4 from both sides.
h ≤ 20 − 4
Subtract 4 from 20 to get 16.

Hope it helps and have a great day! =D
~sunshine~
Answer:
x=47°
Step-by-step explanation:
..,........................
Answer: D (bottom option)
Not Congruent
Step-by-step explanation:
Assuming the trapezoids are to scale, they are not the same shape. This means that they could not be congruent even if they were centered on top of each other.
Answer:
x=36° (180/5x because 2x+3x)
Step-by-step explanation:
Answer: 32x + 72
Step-by-step explanation:
8*4x +8*9
32x +72