The simplified form of R(x) is 
<h3>Simplifying an expression </h3>
From the question, we are to simplify the expression
From the given information,

and

Also,

∴ 

Factoring each of the quadratics



Simplifying




Hence, the simplified form of R(x) is 
Learn more on Simplifying an expression here: brainly.com/question/1280754
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Answer:

Step-by-step explanation:





It is not correct.
The student found the volume by multiplying the base area with the height. He forgot to divide it by 3.
Formula to find the volume of the pyramid = 1/3 base area x height
volume = 1/3 x 92 x 54 = 1656 square meters
Answer:
61.13
Step-by-step explanation:

