Lol help for a brainlist (must show work ) Jira told Helen that the perfume she used was less dense than water. Helen got a graduated cylinder from the cabinet and found the mass of the cylinder to be 58.35 g. Jira poured 25.0 mL of perfume into the cylinder and massed it again. The combined mass of the cylinder and perfume was 68.80 g.
What was the mass of the perfume?

What was the density of the perfume?

If water’s density is 1.0 g/mL, then would the perfume be more or less dense than water? Would the perfume float on top or sink to the bottom of the water?
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Aswimming pool is a rectangle with semicircles on the end. the rectangle is 12 meters wide and 30 meters long. the diameter and width of the swimming pool are equal. sketch and label an overhead diagram of the swimming pool. find the area of the swimming pool floor.

Yosef can eat 21 jamuns while rose can eat just 15 . complete the blank. yosef can eat % more jamuns than rose.

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?