Greenwood Nail Salon is having a special this month on services. Over the weekend, they performed 37 manicures and 39 pedicures, bringing in a total of $1,269 in receipts. So far
this week, they have administered 25 manicures and 39 pedicures, with receipts totalling
$1,161. How much does the salon charge for each service?

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