a soccer organization is going to spend 2990 dollars to purchase all sweatshirts or all jackets for its players. Sweatshirts are 26 dollars each and jackets are 46 dollars each. What is the greatest number of sweatshirts or jackets that the organization can purchase.

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