<em><u>Expression to represent the volume of the cube in exponential form is:</u></em>

<em><u>Solution:</u></em>
Given that,
The edge length of a cube is 13 feet
To find: Volume of cube in exponential form
<em><u>The volume of cube is given by formula:</u></em>

Where, "a" is the length of side
Substitute a = 13

Since they haved asked in exponential form,
Exponential form simply means a numeric form involving exponents
Here the exponent is 3
Thus, expression to represent the volume of the cube in exponential from is
cubic feet