A moving company packs two boxes: box A and box B. Each box has a volume of 4 cubic feet. Box A weighs 24.6 pounds. Box B weighs 37.4 pounds. To the nearest whole number, what is the difference in density, in pounds per cubic foot, between box A and box B? A.2
B.3
C.4
D.5

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

What is the length of the segment, endpoints of which are intersections of parabolas y=x2? 11 4 x? 7 4 and y=? 7 8 x2+x+ 31 8 ?

For a science project, a high school research team conducted a survey of local air temperatures. based on the results of the survey, the found that the average temperatures were around 10 degrees higher than expected. this result was wrong. the trouble with the survey was that most of the locations were exposed to direct sunlight and located over asphalt or sand, which resulted in higher temperatures than normal. this is a classic example of an error in which phase of inferential statistics?