Each month, helder volunteers x hours at the hospital and 8 hours at the local food bank. to find how many hours he will spend volunteering over 3 months, helder calculates: x + 8 + x + 8 + x + 8 what is another way helder can calculate how many hours he will volunteer in total over the 3 months? drag and drop the equivalent expression in the box. a. 3x + 8 b.3(x+8) c. x + 24x + 8 d. x + 8

What is the value of x in the equation (2)3) (x+6)= -18 a. -36 b. -33 c. -24 d. -18

Do social recommendations increase ad effectiveness? a study of online video viewers compared viewers who arrived at an advertising video for a particular brand by following a social media recommendation link to viewers who arrived at the same video by web browsing. data were collected on whether the viewer could correctly recall the brand being advertised after seeing the video. the results are given below.correctly recalled the brandarrival 409153browsing20484b. conduct the hypothesis test, using the 0.025 level of significance.what is the value of the test statistic? χ2stat=what is the p-value? p-value=is this value significant atα=0.025?

Sketch the region enclosed by the given curves. decide whether to integrate with respect to x or y. draw a typical approximating rectangle and label its height and width. y= 5x, y=7x^2then find the area s of the region.