Xian & his cousin kia both collect stamps. xian has 56 stamps, & kia has 80 stamps. the boys recently joined different stamp-collecting clubs. xian’s club will send him 12 new stamps per month. kia’s club will send him 8 new stamps per month. after how many months will xian & kia have the same number of stamps? how many stamps will each have?

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