Answer: There are no real solutions
<span>statements is not true
</span><span>D. -a = c
-a should be equal d, not c</span>
a)
Check the picture below.
b)
volume wise, we know the smaller pyramid is 1/8 th of the whole pyramid, so the volume of the whole pyramid must be 8/8 th.
Now, if we take off 1/8 th of the volume of whole pyramid, what the whole pyramid is left with is 7/8 th of its total volume, and that 7/8 th is the truncated part, because the 1/8 we chopped off from it, is the volume of the tiny pyramid atop.
Now, what's the ratio of the tiny pyramid to the truncated bottom?

4.8 pounds, set it up as 4 over ten times x over 12, 4 times 12 divided by ten equals 4.8