Answer:
s c
2-6
4-12
6-18
8-24
27x^3
Step-by-step explanation:
3*9=27
x*x^2=x^3
Therefore it's 27x^3
Answer: the answer should be A= Parallel
1/6 + 1/7 = 13/42
aka: 7/42 + 6/42