Martin has 48 blue balloons and 36 orange balloons. he separates the balloons into mixed groups of blue and orange. there at the same number of blue balloons in each group, and the same number of orange balloons in each group. what is the least total number of balloons that could be in each group?
a) 4
b) 7
c) 9
d) 21

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