Answer:
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Explanation:
For this exercise you need to analize the information provided in the exercise.
You know that the following polynomial represents the volume (in cubic feet) in the deep end:

And the volume of water in the shallow end is represented with this polynomial:
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Then, the expresion that represents the total volume of water in the pool in cubic feet can be found by adding the polynomials:

This polynomial is already in Standard form because it is written from highest degree to lowest degree.