It would be 15 greater than or equal to 14
Sometimes, because if the number is negative, the opposite is greater, but if the number is positive, the opposite is smaller.
For f(x)=ax^2+bx+c
the axis of symmetry is -b/2a
f(x)=2x^2+4x+2
a=2
b=4
-4/(2*2)=-4/4=-1
the axis of symmetry is x=-1
B
36 divided by 90 gives the percent so its 0.4 which is 40%
So you make your equation 4x+20+40=180.
Add like terms and get 4x+60=180.
Subtract 60 from both sides, get 4x=120.
Divide boths sides by 4, get your answer of x=30.
Hope this helps
