Kendra's son needs math tutoring. She has found a tutor with lots of experience and great reviews. The tutor charges a retaining fee of $5 per week, and an hourly fee after that. After the first week of tutoring, during which they met for 10 hours, the tutor gives Kendra a bill of $336. What hourly rate does the tutor charge? [Round your answer to the nearest cent.)

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