Can You Calculate The Efficient Quantity Of Waste. What Is The Efficient Fee, In Dollars Per Unit Of Waste, That Would Cause The Firm To Dump Only An Efficient Quantity Of Waste?

In business economics, the "efficient" quantity is the one that sets the marginal benefit equal to the marginal cost.

MD = 2+5x = MB = 34-3x
2 + 8x = 34    (add 3x to both sides)
8x = 32    (subtract 2 from both sides)
x = 4    (divide both sides by 8)