Well the answer is A) about 25
Answer:
We have that 
Step-by-step explanation:
We have just to replace n=10 on the general equation

Therefore:

Answer -
5.3(repeated)
Step-by-step -
First you want to take the starting amount and multiply it by .25 which represents the 25%
The next step is to then divide the number you get by six giving one sixth of the 25%
Answer:
3:1
Step-by-step explanation:
If you look at the sides, they all have the same factor of three, and dividing by three gets you to the smaller rectangular prism.