Answer:

Step-by-step explanation:
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Let's find the surface area of the pink rectangular prism first.




The surface area for the pink rectangular prism is
.
-------------------->>>>>
Now, let's find the surface area of the green rectangular prism.




The surface area for the green rectangular prism is 144
.
-------------------->>>>>
Now let's add the surface area of both rectangular prisms to find the surface area of the composite figure.


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Hope this is helpful.
You would add the y's together and then you have your answer and then answer is -2y-4
Answer:
-2;12
Step-by-step explanation:
it's too easy!
Answer:
I think like 21
Step-by-step explanation:
i think it correct but if it not it okay but alaest I try my best on it