The answer is W
they cleared out the store the day before with a sale the next day the store only has 32 in their inventory if the sold the same amount until closing that sells 4 TV's per hour which adds up to 8 hours also they loose 4 every hour causeing the inventory line to go downward until sold out 8 hours later
144/200=0.72 or 72%
225/100=2.25 or 225%
42/50=0.84 or 84%
Brainliest?
the discriminant b^2 - 4ac when the equation is in the form of ax^2 +bx+c=0
13x^2-16x = x^2 -x
we need to get in it the standard form
subtract x^2 from each side
12x^2 -16x = -x
add x to each side
12x^2 -15x = 0
12x^2 -15x -0 =0
a=12 b=-15 c=0
b^2 -4ac
the discriminant = b^2
b^2 = (-15)2 = 225
