Answer id provided in the image attached.
Answer:
9
Step-by-step explanation:
The factors of 18 are : 1, 2, 3, 6, 9, 18
The factors of 27 are : 1, 3, 9, 27
The common factors are : 1, 3, 9
The gcf is 9
It should be 2 to 3, so the last answer should be right
Answer:
Step-by-step explanation:

