97 I think
Steps:
72^2 + 65^2= c^2
5184 + 4225= c^2
9409= c^2
C= 97
14n+ 4 = 2( 7n + 2 ) ; the factors are 2 and ( 7n + 2 ) ;
It's an example of all, the middle rails intersect with the side rails which the side rails are parallel to eachother and the side rails are perpendicular to the middle rails.
60/150 = 40%
Hope this helps :D
Aos: x=0.5
vertex: (0.5,-1.25)
y= (x-0.5)(x-1.5) - 1.25
