Suppose the Total Spillover Cost of mining for lithiura was given by: TSpC=2Q +0.25Q2. Currently the market is producing 30 units. Determine the optimal Pigovian tax if the efficient quantity of lithium was 20 units. (Do not include a \$sign in your response. Round to the nearest two decimal places if necessary.) Answer: Suppose the supply of iron was given by: QS =5P2100. The government levies a per unit tax of $221 on the suppliers of iron. Solve for the supply function of iron with the tax and fill in the missing information below. (Round to the nearest two decimal places if necessary. You do not need to include the negative sign.) Q2tax=5P