30% of the cars sold by car dealer a were blue. 50% of the cars sold by car dealer b were blue. which statement must be true? if both dealers sold the same number of cars, car dealer b sold 20 more blue cars. car dealer b sold more blue cars than car dealer a did. if car dealer a sold 50 total cars, 30 would be blue. if both dealers sold 70 total cars, car dealer b sold 14 more blue cars.

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Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels. ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0

Apyramid fits exactly inside a cube. the cube and the pyramid share the same square base, and they are both exactly the same height. the volume of the cube is 66 cubic inches. what is the volume of the pyramid? explain your answer. answer asap