<span>circumference is L=2

L=2π9=18π=18*3.14=56.52 in
Answer: </span>circumference is <span>18π or 56.52 in</span>
The new amount would be 11 more than the original
Assuming you meant 45x^2y^2+18*3 , it should be 9(5x^2y^2+6)
The answer is 19 units number 3