Final answer:
The polynomial that represents the volume of Box 3 has a degree of 3.
Step-by-step explanation:
The polynomial that represents the volume of Box 3 can be determined by multiplying the length, width, and height of the box.
Given that the length is 4 times the width, we can represent the length as 4x. The width is x, and the height is x². To find the volume, we multiply these three terms:
Volume = (4x)(x)(x²) = 4x³
Therefore, the polynomial that represents the volume of Box 3 has a degree of 3, since the highest power of x is 3.