Answer: 4
Explanation:
First, we need to find the volume of the pyramid. The formula for its volume is pictured below. We know all the sides and dimensions of the pyramid, so that is why we are doing this first.
14 * 4 * 12 = 672
672 divided by 3 is 224. The volume of the pyramid is 224 in cubed.
Now, we need to find the area of the rectangular prism. We can use that and divide the volume of the pyramid with it. Doing so will give us the value of x.
8 * 7 = 56.
224 divided by 56 = 4
X equals 4.