Final answer:
The area of the square garden with a side length of 9 is 81 square units, and the volume of the cube with the same edge length is 729 cubic units.
Step-by-step explanation:
To find the area of a square with a side length of 9, we simply square the length. So, the area of the square garden would be 9 * 9 = 81 square units.
Since the volume of a cube with the same edge length is given by the formula V = side length * side length * side length, we can substitute 9 for the side length to find the volume. Therefore, the volume of the cube would be 9 * 9 * 9 = 729 cubic units.