Answer:
that answer u put is correct and r u in K12 to lol
Answer:
did not understand ur q.a
I believe it would be negative 9 because your subtracting by twelve again. I hope that helped
Answer:
The length side of the original square banner was 9 ft
Step-by-step explanation:
Let
x-----> the length side of the original square banner
we know that
The new area of the banner is equal to

Solve for x

Solve the quadratic equation by graphing
The solution is x=9 ft
see the attached figure