Answer:
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Step-by-step explanation:
I believe the correct answer is 4/5 of an hour.
1/2
x + 9 = -15x = [1]
x - x + 9 = -15x -x = 1
9 - 1 = -16x
8 = 16x
8/16 = 16/16x
1/2 = x
Hope this helps
C. - 4x^2 + 5x - 4
just expand the equation and you'll get C
