864 in^2 as total surface area of the cube= 6 x side^2 = 6 x 12 x 12 in^2
Answer:
From my understanding of the question its 104.58 for the first picture (8.3x3x4.2)
Step-by-step explanation:
All you need to do is multiply the length width and height. it will give you the volume of the object. For your understanding, you can try the second one as practice for these type of problems.
2.5=2x
2.5/2=x (of course when dividing by a fraction you multiply by the reciprocal so it would be 5/2*2/1
x=5/4
All the mentioned options are similar to the given expression, except option B.
<h3>What is simplification?</h3>
Simplification refers to the process of making something simpler or easier to do or understand.
Given: 
On simplification ,we get:

Now, we can see that the options A, C, D, E are similar but Option B is completely different.
Hence option B is the required answer, i.e., all the mentioned options are similar to the given expression, except option B.
To learn more about simplification, refer to the link: brainly.com/question/723406
#SPJ4
The answer is the third one.