8.5, 8/5, 17/25, 82%
because u make them all decimals by dividing them and then do it greatest to least. i’m not totaley sure the order is correct but in decimal form 8.5 = 8.5 bc u don’t have to change it 8/5 = 1.6 and 17/25 = .68 and 82% = .82
It would be : -9.3 , -4.125 and -2.25.
Hope This Helps You!
Good Luck Studying :)
No because it would be
if you knew that
ax^2+bx+c was a trinomial square, then the factored form would be

or

so
if w^2-9w+81 is perfect square, factored form is either

or

aka

or
expand them
(x+9)^2=x^2+18x+81, wron middle term
(x-9)^2=x^2-18x+81 wrong
so it is not