9. joan and susan were selling wa
sold 6 water bottles for every 21
many bottles did each girl sell?
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susan were selling water bottles to raise money for new football uniforms. joan
bottles for every 2 that susan sold. together they sold 160 water bottles. how

Simplify the expression. -2/5(10+15m-20n)

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?

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10