Respuesta :

C because 0.55, 0.5, 0.2, 0.05
1/5 is equal to 0.2 in decimal form. 
5/10 is equal to 0.5 in decimal form. 
That means that greatest to least, the numbers are: 
0.55, 5/10, 1/5, 0.05 
The answer is C.
Hope this helps!