Your total benefits from consuming different quantities of gas each week are shown in the following table.

a. Complete the marginal benefit column starting with the step from 0 gallons to 1 gallon per week.

b. The price of gasoline is $4 per gallon. Use the Principle of Optimization at the Margin to find an optimal number of gallons of gas to consume each week.

c. Some people have suggested a tax of $2 per gallon of gasoline as a way to reduce global warming. (Burning fossil fuels such as gasoline releases greenhouse gases, which are a cause of global warming.) Suppose the price of gasoline (including the tax) rises to $6 per gallon. Use the Principle of Optimization at the Margin to find an optimal number of gallons of gasoline given this new tax on gasoline.

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Gallons per Week 0 Total Benefit (dollar equivalent) 0 1 8 234567 15 21 26 30 33 35 36 Marginal Benefit X