The 7th and 8th grades have enrollments of 520 and 650 respectively. the two grades have a total of 18 representatives on the student council. how many representatives should the 8th grade have if there is to be a fair representation of the two grades?

Create another three examples that does not behave like a function. explain why your chose each example to fit the category be very

You have 12 balloons to blow up for your birthday party. you blow up 1/3, and your friend blows up 5 of them. what fraction of the baloons still need blowing up

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