The difference between personal income and disposable income is:

Bill and Krista sell potted plants from a roadside stand. The figure above shows Bill and Krista's marginal cost curve and the market price. If Bill and Krista sell 60 plants per week at $8 per plant, their producer surplus from all their plants is

A) $8. B) $480. C) $240. D) $0. E) More information is needed to answer the question.

If all resources were perfectly adaptable for alternative uses, the production possibilities curve would

A) be bowed out. B) be bowed in. C) be a straight line. D) not exist.