Sorry for the hand writing. But you want to factor out a 4y^2 which will result in (9y^2-1). Then you will factor out the equation in parentheses to (3y-1)(3y+1). Don’t forget to put the 4y^2 out front!
Ummm explain the question more but b seems to make the most sense
The answer is 3/4. You divide both numbers (54 and 72) by 18 and you get 3/4. Hope it helps!
It looks like a 126%angle ok