ASAP NEED HELP PLEASE. In an experiment, students were given an unknown mineral. The unknown mineral was placed in 100 mL of water. Once in the water, the volume went up to 165 mL. Then when the same object was dried, then massed on a balance. It had a mass of 292.5 grams. What is the density of the unknown mineral?

Note: You only have to fill in the numerical answer. (no units)

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?

Lucy is a dress maker. she sews \dfrac47 7 4 of a dress in \dfrac34 4 3 hour. lucy sews at a constant rate. at this rate, how many dresses does lucy sew in one hour? include fractions of dresses if applicable

Ofin . (2,4) (2,1) a. y= 2 b. x= 2 c. x= -2 d. y= 2x