Answer:
A.
Step-by-step explanation:
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?

(23+15x) when you add this you will have your answer
Answer:
Option A and Option C
Step-by-step explanation:
Option A:
This is completely factored as 8 is the Highest Common Monomial factor
Option B:
This is not completely factored as 2 is still a common factor of 6y2 and -2.
Option C:
This is completely factored as 4y2 is the Highest Common Monomial factor
Option D:
This is not completely factored as 2y is still a common factor of 4y6 and 2y.
So the options that are completely factored are Option A and Option C