Honestly, I have no idea what it means by decomposition, but this is my best bet on what it means: Dividing the polygon into smaller, easier sections and solve for area and add them up.
Answer:
76
Step-by-step explanation:
38 multiplied by 2 = 76
Answer:
The answer should be x < 
Step-by-step explanation:
Answer:
-20
Step-by-step explanation:
Answer:
Last one
Step-by-step explanation: