2 Joanna went school supply shopping. She spent $29.56 on notebooks and pencils. Notebooks cost $2.50 each and pencils cost
$1.12 each. She bought a total of 19 notebooks and pencils. How many of each did she buy?

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?

Moira has a canvas that is 8 inches by 10 inches. she wants to paint a line diagonally from the top left corner to the bottom right corner. approximately how long will the diagonal line be?

8. kelly wants to buy a magazine that is $25. later the magazine was marked up an additional 20%. what is the new price?