Select each correct answer. i will give brainliest to whoever is correct

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

Find the interior angle of a regular polygon which has 6 sides

When steve woke up. his temperature was 102 degrees f. two hours later it was 3 degrees lower. what was his temperature then?