I believe this is the answer bc 6 less than 6 would just be zero
sry my mistake wrong quesrion
Answer:
Top one, least to greatest:
,
,
,
, 6.6, 
Bottom one, greatest to least
9.6,
,
, -4.2,
, 
The answer is HL. We know this because it is a right triangle (:
21= 1,3,7,21
30= 1,2,3,5,6,10,15,30
common factors= 1,3