Jenny and Melissa are stuck simplifying radical expressions. Jenny has to simplify x2/3 over x1/6 Ñ. Melissa has to simplify 30 radical x^2•x5•x^7. Using full sentences, describe how to fully Melissa's expressions. Describe if Jenny and Melissa started with equivalent expressions or if they started with expressions that are not equal.

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