Answer & Step-by-step explanation:
The formula is given in the middle. You are supposed to insert the value of x into this formula to find the value of y (like in the first given example):

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:Done
We know to each pound of such, there is 16 packets produced per?
So, 16 x 40 = 640.
The Opposite of 3.82 is -3.82. It's like you saying what is the inverse of 3.82.