On friday, a fruit stand sold a total of 92 apples and oranges. on saturday, the fruit stand sold four times the number of apples and two times the number of oranges. a total of 284 apples and oranges were sold on saturday. which system of equations yields the number of apples, a, and oranges, o, sold on friday?

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