A stop sign shape i think
54 muffins because if you take both your given fraction find the nearest common denominator which is 3 4/12 divide the 4 and 12 to get 3 than divide by 0.10 than divided by a whole 10 which got me 3.03 etc.
Round it see how many times it can go into 10 3 times than multiply it by 18.
2.16 x 10 to the power of -4
The volume of a sphere is 
So, if the small sphere has radius
and the largest sphere has radius
, their volumes are

So, their ratio is

I don’t understand you buddy :/