To find the Greatest Common Factor (GCF) of the expression \(18j + 27\), we need to determine the GCF of the coefficients 18 and 27.
The factors of 18 are:
- 1, 2, 3, 6, 9, 18
The factors of 27 are:
- 1, 3, 9, 27
The common factors of 18 and 27 are:
- 1, 3, 9
The greatest of these common factors is 9.
So, the GCF of \(18j + 27\) is 9.
The correct response is: 9