Seven people went to the movies. the number of adults was one more than the number of children. write a system of equations that represents the number of adults and children. solve the system algebraically. interpret the solution.

Average acceleration: i have no idea how to do this.

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?

How to find the exponential function y=ca^x, with points (1,2) and (2,1)