The cost of admission for a student is $4 less than the cost of admission for an adult.
a. write a function that relates the cost of admission for a student s with the cost of admission for an adult a.
b. what is the cost of admission for a student when the cost of admission for an adult is $7.50?
c. what is the cost of admission for an adult when the cost of admission for a student is $2?

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