7th grade what is the tone, or mood in the beginning of the play? "A christmas carol" A- Violent and frighting
B- Dark and gloomy
C- Silly and sentimental
D- Loving and festive

Find an equation for the linear function which has slope -10 and x-intercept -7

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?

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