Which of the following items are permanent differences? bad debt expense in excess of amount deducted for tax purposespremiums paid for life insurance on key officersfines and bribesinterest on municipal bondswarranty expense in excess of amount deducted for tax purposes

Power plants that rely on coal increase the amount of sulfur dioxide that dissolves into the air, eventually increasing the acidity of precipitation. the higher acidity of rain and snow can damage forests by making it more difficult for plants to absorb minerals from the soil. the equations below provide information about the market demand and supply of electricity. there is a constant marginal external cost of $25 per unit of electricity. d: qd= 200 – 2ps: qs=p – 10what quantity of electricity satisfies allocative efficiency in this market? a. 60b. 70c. 50d. 43.3