A manufacturing firm has a marketable permit that currently allows for 150 tons of emissions. However, the marketable permit is shrinkable and the firm will only be allowed 100 tons of emissions next year. The manufacturing firm projects that its optimal emissions next year will be 160 tons. It is the best interest of the manufacturing firm to purchase permits allowing for _______ tons of emissions.

Since we are given the information that the firm will only be allowed 100 tons of emissions next year while the manufacturing firm projects that its optimal emissions next year will be 160 tons, then it will be in the best interest of the manufacturing firm to purchase permits allowing for (160 - 100) = 60 tons of emissions.

The correct answer is 60 tons of emissions.

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