Answer:
The coefficient in the expression is 1.2.
The greatest common factor is 1.2.
Explanation:
Given : Expression

To find : Factor out the coefficient of the variable and find the greatest common factor ?
Solution :
Coefficient is defined as a number used to multiply a variable.
Variable is an unknown number represented by alphabet.
In the given expression,

The variable is 'k'.
As 1.2 is multiplied with k,
The coefficient in the expression is 1.2.
The greatest common factor is the common term in both terms,

The greatest common factor is 1.2.