Answer:
168 units cubed for area
D is your answer
Step-by-step explanation:A=L*W*H
4*3=12*14=168 units cubed
1
3+45=48*13=624
2
41*3*11=1353
3
123*11=1353
4
12*14=168
Considering the least common multiple of the denominators, it is found that the result of the expression is given by:

<h3>How do we add fractions?</h3>
We place all the terms of the addition in "equivalent" fractions, with the same denominator, found from the last common multiple of all the denominators.
In this problem, the denominators are as follows: 28, 70, 130, 208, 304. Using a calculator, their lcm is of 138,320.
Considering equivalent fractions(the numerators are the division of the lcm by the previous denominator), the expression is:

More can be learned about the addition of fractions at brainly.com/question/78672
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Volume = pi x radius squared x height
v=3pixr^2x3
v=27pi
<span>We have this equation:
</span>

and we need to find the value of x.
First of all, we multiply the whole equation for 1/2, so our goal is to isolate x, therefore:
Next step we must do is to apply <span>logarithms:
</span>

Next, we have to apply identities and then to solve the equation:




Finally, we have the value of x which was our goal. This is the answer for the question above:
You can do 5+5+10, 6+6+8, 9+9+2, 4+4+12, 3+3+14, 2+2+16, 1+1+18. I believe these are all of them, so there are 7 ways.