<h2>
Hello!</h2>
The answer is:

<h2>
Why?</h2>
To solve the problem we need to add/subtract like terms. We need to remember that like terms are the terms that share the same variable and the same exponent.
For example, we have:

We have that we were able to add just the terms that were sharing the same variable and exponenr (x for this case).
So, we are given the expression:

Hence, the answer is:

Have a nice day!
AB=6 but DE=2(AB) so DE=2(6)=12
I’m guessing
Answer:
1/6
Step-by-step explanation:
if 1/3 is for a whole batch and you want to make a half batch. So, divide 1/3 by 2.
Answer:
Decay...? Read below
Step-by-step explanation:
Assuming you meant to put 20 - (1.27)x, it is decay. As the x increases, the y decreases, making it decay.
I think it's C. I did use a graphing calculator as that makes it quicker and easier to solve these and its never failed me. C looks the closest since all the other lines graphed would be too low or too far to the right.