A store is having a 20 percent off sale on jeans. Ava also has a 5.00 off coupon and uses it to buy a pair of jeans. The clerk says that the coupon must be applied before the sale price is calculated. Ava ends up paying $24 for the jeans what is the regular price show work

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