7x - (25x^2 + 12x) = 7x - 25x^2 - 12x = -25x^2 - 5x
Set up a x/100 = (14-48)/48 = -34/48 Multiply the cross 48x = -3400 x = 70.8333 so around -70.83% change
Acres of planted corn = (2/7) * (4/5)
= (2/7) * .8 = 1.6 / 7 acres = 0.2285714286 acres
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I hope this right
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Hope it helped. Don't forget the arrows at the ends or els it will be wrong.
