Answer:
5
Step-by-step explanation:
1,2,5
Answer:
i dont know the first one, but the answer to the second question is 28
Step-by-step explanation:
Answer:

Step-by-step explanation:
Complete question is given below
Add:-
ab-bc+ac,bc-ca+ab,ca-ab-2bc
We have to find the result after addition
Now, adding all expression
We get

Combine like terms then, we get


Hence,
Answer:
A
Step-by-step explanation:
So this one is pretty easy actually when x= a number you automatically know it'll be a vertical line cutting through the x axis. So for this problem (x=5) the line will be vertical and cut through the x axis. Hope this helps!