We divide the total set into several sub-sets (subgroups) that contain the exact same number of members. This way we know the number of total members by adding the number of total subsets.
i think it’s is a for the first one
Answer:
BC ~ DE because of similar transformation
Step-by-step explanation:
ABC and DEF are not similar transformations the second one is wrong, the third one is wrong because. The last one ios right because by deduction it is.
Question # 1
Answer:

Step-by-step explanation:
Given the expression

∵ 
∵ 








Therefore,

Question # 2
Answer:

Step-by-step explanation:
Given

∵ 
∵ 










Therefore,

Answer:
he would have to pick 1,2,3 or 5...so that is 4/6 chance
if you need the percentage (im not sure if its right) it would be 76%