The above figures show the market for oranges. Which figure(s) shows the effect of a new government program that provides each public school child with an orange to start the day?

The above figure shows the market for anti-freeze. The government imposes the sales tax shown in the figure on sellers. How much tax revenue does the government raise from this tax?

A) $2,000 B) $3,000 C) $4,000 D) $6,000

Everything else being equal, a job in which workers face a relatively small chance of being laid off would generally have

a. a lower wage rate b. a higher wage rate c. more fringe benefits d. higher skill requirements e. no expected wage differentials in equilibrium