The segments of a CMO are also called

Does the term "mandatory spending" mean that spending must go on forever?

A) Yes, Congress has no right to change these spending programs. B) Yes, the laws which authorized this spending cannot be changed. C) No, once appropriated, spending is for the life of the program only or until it changes. D) Yes, once appropriated, spending is indefinite.

For a constant returns to scale production function:

a. marginal costs are constant but the average cost curve has a U-shape. b. both average and marginal costs are constant. c. marginal cost has a U-shape; average costs are constant. d. both average and marginal cost curves are U-shaped.