Any create command may be reversed by using a ________ command

Tax return preparers can be subject to penalties under the Internal Revenue Code for failure to do any of the following, except

A. Sign a tax return as a preparer. B. Disclose a conflict of interest. C. Provide a client with a copy of the tax return. D. Keep a record of returns prepared.

A linear goal programming model can be formulated as:

a. A single linear programming model. b. A series of connected nonlinear programming models. c. A single nonlinear programming model. d. All of the above