Adistributor ships dvds to several stores. the shipping boxes contain several dvds (in their cases) plus a layer of padding at each end of the box. the dvd cases and layers of padding are packed along the length of each box. each dvd case is 14mm thick, each layer of padding is 10mm thick, and the length of the interior of the box is 132mm. if d represents the number of dvds that the distributor can fit into one box with two layers of padding, which of the following inequalities best models the situation?

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