Respuesta :

3x - 6y - z - 13

The coefficient of x is 3
The coefficient of y is -6
The coefficient of z is -1

Answer: The coefficients are 3 , -6, -1 (Answer D)
The coefficient is the number placed before the variable, multiplying it.  The coefficient of 3x is 3, -6y is -6, and -z is -1.  13 doesn't have a coefficient.  The correct answer is D.