PLEASE HELP I WILL MARK YOU BRAINLIEST (1) A bottle of orange juice costs $2.52 for 12 ounces of orange juice and a bottle of apple juice costs $5.28 for 33 ounces. Which juice costs less per ounce?

(2) Joe has $22.31. He spends $10.12 on grapes and $5.33 on pears How much money does he have left?

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