Answer:
The volume of a pyramid can be calculated using the formula:
V = (1/3) * base area * height
where "base area" is the area of the base of the pyramid.
In this case, the base of the pyramid has a length of 9 meters and a width of 7 meters, so its area is:
base area = length * width = 9 m * 7 m = 63 m^2
The height of the pyramid is 13 meters.
Now we can calculate the volume:
V = (1/3) * base area * height
= (1/3) * 63 m^2 * 13 m
= 273 m^3
Therefore, the volume of the pyramid is 273 cubic meters.