Answer:
12
Step-by-step explanation:
The LCM of the two numbers is composite. The LCM of two numbers is a square number. The GCF of two numbers is a square number. The GCF of two numbers is 12.
I think it's C, I could be wrong though
Answer: Null hypothesis : 
Alternative hypothesis : 
Step-by-step explanation:
Let
be the proportion of women using supplements and
be the proportion of women who did not to have died during that period .
Then the set of hypothesis for testing if the proportion of women elderly women who use dietary supplements is different than those who do not will be :-
Null hypothesis :
[∵ it takes equality sign]
Alternative hypothesis :
[∵ it takes ≠ sign to show difference]
Well sure it can be. You want to divide 2/2 and 10/2. If 2/2=1, then 10/2=5. 2/10=1/5
HOpe this is helpul