Answer:
-2 5/6
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given matrix is,

Operations performed,
-10R₂ → R₂

3R₃ → R₃

Answer:
Its the same formula that your using to find a regular object as an irregular one. The only difference is that your adding the formula of multiple shapes together since an irregular shape consists of multiple regular ones
hope this helps!
To answer your question the best option would be B. I hope this helps you out :D