Answer:
I dont know someone deleted answers. But they were wrong. INERTIA IS CORRECT I DID THIS IN MY SCHOOL
C IS CORRECT
Most as long the hypothesis is a good answer and can be answered
6 and 
Explanation:
The expression:
6a - 
A coefficient is a numerical constant usually placed before a variable in an expression.
They are used to multiply variables.
Given equation is;

There are two variables in this expression which are;
a and - b

The coefficients in this expression are:
6 and 
learn more:
Quadratic equation brainly.com/question/1357167
#learnwithBrainly
D.) Because it has a definite composition...