Josh works as a tutor for $
11
an hour and as a waiter for
$
15
an hour. This month, he worked a combined total of
106
hours at his two jobs.

Let
t
be the number of hours Josh worked as a tutor this month. Write an expression for the combined total dollar amount he earned this month.

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