The large decorative storage unit needs to be updates, painted, and re-
shingled. The base of the storage shed is a rectangle measuring 15 feet by 20

feed, and the shed’s height is 10 feet. The roof’s front face (the triangular part
at the top of two opposite walls) is an isosceles triangle with a height of 4 feet.
Find the surface area to be painted (all the wall space, no roof or floor).

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.

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

If point cis between points a and b, then ac + — = ab