Sam takes a five-dollar bill from his wallet. he exchanges the bill for four quarters and four one-dollar bills. he then uses the change to buy a bottle of water from a vending machine. which characteristics of money has sam best demonstrated?

a. acceptability, divisibility, and portability

b. divisibility, scarcity, and stability of value

c. durability, portability, and standard

d. medium, scarcity, and value

Ineed ! what is the best way to combat test anxiety? a. prepare thoroughly for the test c. picture yourself getting an a b. take deep breaths during the test d. none of these

Which of the following best illustrates the process of the supreme court’s review of a case?

Pj conducts an experimental study on the effects of soft music during high stakes science testing. he randomly assigns students at the school. in one condition he does not provide music for testing while in the other group he does provide the music. he administers a pretest at the beginning of the year and a posttest at the end of the year. pj’s design is best described as a: a. static group comparisonb. pretest-posttest control group designc. control-group-time-series designd. nonrandomized control-group pretest-posttest design