Two power plants operate in the same town. Each plant currently emits 7 tons of emissions per year or 14 tons per year total. The town wishes to reduce emissions to 10 tons per year overall to achieve an abatement target of 4 tons per year. Power plant 1 has marginal abatement costs given by: MC1 = 12 - 2A1. Power plant 2 has marginal abatement costs given by: MC2 = 10 - A2 Calculate the cost effective amount of abatement for each plant