Answer:
3.5 dollars
Step-by-step explanation:
The price of one comic book is 3.5.
I got this by dividing 21 and 6
Subtract the two over to cancel it out
3x=36
then divide by 3 to get an answer of
x=12
I'm guessing you mean:

If not, correct me.
So, then the perimeter of a square is just 4*A, which in this case would be:

And that would be your answer:

units²
Answer:
Answer
Step-by-step explanation:
7. f(x)=0.2x
8. f(x)=3x+5
9. f(x)=-2x-2