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.
Answer:
18.027756
Step-by-step explanation:
Pythagorean Theorem
10²+15²=c²
100+225=c²
325=c²
√325=c
c=18.027756
Answer:
Step-by-step explanation:
This is werid... Don't know how to answer this sorry.
It lands on floor 5.
10-9+19-3-12
1+19-3-12
20-3-12
17-12
5
The correct answer is B. 83