Answer:
Hello,
Answer C: -40
Step-by-step explanation:

$5
If you have 4 books and the total cost is $20, divide!
20/4 = 5
Answer:
A. 2 and-6
Step-by-step explanation:
Like terms are terms that contain the same variables raised to the same powers. In other words, they have the same variables with the same exponents.
So in option A, we have the terms 2 and -6. These terms are not like terms because they do not have the same variables.
Answer:
C
Step-by-step explanation:
Hope this is right, this is what I got.