You and your friends kyra and paolo decide to make some money during summer vacation by building and selling birdhouses. to get the business started, kyra contributes $22, and paolo contributes $18 to buy equipment and materials. you all agree that each person will earn the same amount of money after kyra and paolo get back what they invested. your business earns a total of $280.how much does each person get at the end of the summer?

Agroup of student volunteers participates in a study designed to assess several behavioral interventions for improving output in a repetitive task. prior to the beginning of the study, all volunteers unknowingly observed, and their output is measured. at the beginning of the study, prior to any intervention, the volunteers perform the same task under the observation of a study administrator, and their overall output increases. which of the following terms describes this phenomenon? a. simpson's paradox b. hawthorne effect are d. novelty effect d. pygmalion effect e. observer-expectancy effect