Shakira is planning to put a lawn in her backyard by installing sod (rolls of grass) and needs to know how many square feet of sod she should order. Her yard is irregularly shaped and has fishpond in the center (fishpond area does not need sod). The dimensions of the lawn she is planning are shaded in the diagram below. All measurements are in feet. Calculate the area of Shaira’s lawn that will need sod. Make sure to identify the shapes that you see, write the equation for the area of each shape. Show your work.

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