Aubrey and charlie are driving to a city that is 120 mi from their house. they have already traveled 20 mi, and they are driving at a constant rate of 50 mi/h. complete the function that models the distance they drive as a function of time. then complete a reasonable domain for this situation.

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