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<u>The answer is </u><u>6x³ - 72x² +288 -384</u>
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The weight is proportional to the price. So if 10lb cost $18.24, quarter as much (2.5lb) would cost four times less($18.24÷4=$4.56).
Answer: Y = e^2
The steps are shown in the picture!
I belive this is -3x+3/x^3
hope this helps!