The goal programming problem with the objective function Min P 1(d 1 +) + P 2(d 2 −) is initially solved by the computer and the objective function value is 0. Which of the following constraints should be added for the second problem?

a. d1+ ≤ 0
b. −d1+ + d2− = 0
c. d1+ = 0
d. d1+ + d2− = 0

One investigating company tracked all credit card purchase during 2012 and measured two variables: (1) the type of credit card used (visa, mastercard, american express, or discover), and (2) the amount (in dollars) of each purchase. identify the level of each variable measured.

Which critical success factor improves with reduced cycle time, better quality standards, and improved efficiency when an is is implemented?

Rosie and her brother michael decided recently to purchase an rv together. they both want to use the rv to take their families camping. the price of the rv was $10,000. since michael expects to use the rv 60% of the time and rosie 40% of the time, michael contributed $6,000 and rosie contributed $4,000. their ownership percentage equals their contribution percentage. which type of property titling should they use to reflect their ownership interest?