What is the gcf of 18 and 36 and 54

18 is the GCF

Step-by-step explanation:

The factors of 36 are:

1, 2, 3, 4, 6, 9, 12, 18, and 36

The factors of 54 are:

1, 2, 3, 6, 9, 18, 27, and 54

The factors of 18 are:

1, 2, 3, 6, 9, and 18

All of the numbers have 18 as the greatest common factor.

the correct answer is d

hope this

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value