The federal government in 2007 accounted for approximately _____ percent of all government spending

The figure above shows the marginal social cost curve of generating electricity and the marginal private cost curve. The marginal cost borne by producers when 100 billion kilowatt hours are produced is

A) 5¢ per kilowatt. B) 10¢ per kilowatt. C) 15¢ per kilowatt. D) 20¢ per kilowatt. E) 0¢ per kilowatt.

The above figure shows the market for gasoline. When a hurricane destroys a major refinery that refines oil into gasoline, the

A) demand curve for gasoline shifts from D1 to D2 and the supply curve of gasoline does not shift. B) demand curve for gasoline shifts from D1 to D2 and the supply curve of gasoline shifts from S2 to S1. C) demand curve for gasoline does not shift, and the supply curve of gasoline shifts from S2 to S1. D) demand curve for gasoline does not shift, and the supply curve of gasoline shifts from S1 to S2.