Answer:
Step-by-step explanation:
A linear expression has the highest power of the variable to 1, i.e ax+b
So, in this case the questions is not well presented
But looking at options C.
6x
This is linear expression when compare to ax+b, but b=0
Looking at option D
7
This is also a constant and it is linear.
But the best answer is C because it is an expression that has variable x and it is function of x.
