A is false but R is true (the mean of the last 3 values is not 8 since x=7)
6/12=1/2
Therefore 6/12 is equal to 50/100 or 50%
Answer:

Step-by-step explanation:
using form:

where a: starting number
where r: common ratio (in this case each next term is 3 times previous term)
This is an example of the commutative property of multiplication.
That property states:

So using that property, we can figure out that
3 should be in the blank.
Answer: its A, B, and D
Step-by-step explanation: