Lindsay is playing a video game. She begins with an initial score of 300 points but loses 180 points throughout the game. She represents her score using the expression below. 300 - 180

Which expression also represents Lindsay’s video game score?

300 – 180

180 + 300

300 + (-180)

300 + (1280)

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