Which president was/is known as "the Great Communicator"?

Which of the following is not present in nearly all decision processes?

a. Some uncertainty b. Financial criteria for measuring gains or losses c. An element of risk d. Some expenditure of resources

A "social area"

a. consists of a census tract inhabited by people sharing a unique combination of social characteristics. b. is the city district in which restaurants and entertainment facilities can be found. c. is highly representative of the overall city population. d. None of the above