Jenny worked in a bookshop for two weeks . she is paid $125 per week plus 10% of tha value of the books she sells that week . in the first week she sold a
value of $800
a) work out the total amount she is paid in the first week
in the second week , jenny was paid a total of $225
b) work out the total value of the books she sold in the second week

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