How do I calculate each individual' s total benefit, total cost and total net benefit at the efficient level of clean air? The efficient level of clean air is Q*=40

1. (30 points) Three people live around a coal-fired power plant. Each individual has a different sensitivity to air pollution, therefore, each has a different willingness-to-pay for clean air. The following equations describe their willingness-to-pay (WTP), where Q is the level of clean air. A's WTP: PA = 100 - 0.5QA B's WTP: PB = 100 - Q B C's WTP: Pc = 100 - 2Qc The marginal cost of cleaning up the air is given by, MC = 0.5Q + 140