Final answer:
The volume of the gas tank cannot be calculated without the length of the tank.
Step-by-step explanation:
The volume of a rectangular gas tank can be found by multiplying its height, width, and length:
Volume = height x width x length
In this case, the height is given as 8 feet, the width is given as 6 feet, and the length is not provided. Therefore, without the length of the gas tank, it is not possible to calculate the volume accurately.
Once the length of the gas tank is known, the volume can be calculated by substituting the given values into the formula.