I am certain the answer is C. Algebra properties are used in proofs. Postulates are definitely used. And definitions are explanations. So, it is C.
Answer:
45= 2 x 3 x 7
12= 2x2x3
Step-by-step explanation:
42
/ \
2 21
/ \
3 7
12
/ \
2 6
/ \
2 3
12÷15<u /><em />=160
you have to divide 12 by 15 percent to get the missing number
Answer:
The answer is 8x.
Step-by-step explanation:
It is 8x.
EXCEPT,
Is it
or 
If it is
then the answer is 
PLEASE MARK BRAINLIEST