Eric and charlotte collected donations for the food bank. charlotte collected 3 times the amount of erics donations minus $20. eric and charlotte combined their donations and spent half of the money on canned food . the rest of the money $50 was donated to the food bank directly. how much money did each student collect?

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