A relational database can be defined as a self-describing collection of non-integrated relations. a) true
b) false

What is the relationship between marginal external cost, marginal social cost, and marginal private cost? a. marginal social cost equals marginal private cost plus marginal external cost. b. marginal private cost plus marginal social cost equals marginal external cost. c. marginal social cost plus marginal external cost equals marginal private cost. d. marginal external cost equals marginal private cost minus marginal social cost. marginal external cost a. is expressed in dollars, so it is not an opportunity cost b. is an opportunity cost borne by someone other than the producer c. is equal to two times the marginal private cost d. is a convenient economics concept that is not real

How does having a flexible mind you become a better employee? a. it you become more honest toward work. b. it you become a team player. c. it you learn new things that will better your performance. d. it you to finish your work on time. e. it you reach work on time

Which of these is not a result of regular exercise