Three sisters are saving for a special trip. The ratio of Maurice​'s savings to Nora​'s savings is 9:4 and the ratio of Nora​'s savings to Gertrude​'s savings is 4:5. Together all 3 sisters have saved ​$72. How much has each girl ​saved? Answer questions 3–4.

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

The constant of proportionality is always the where k is the constant of proportionality. additionally, you can find the constant of proportionality by finding the ratio for any point onasap

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?