Part of the population of 7,750 elk at a wildlife preserve is infected with a parasite. a random sample of 50 elk shows that 11 of them are infected. how many elk are likely to be infected?

Me its important ! marge runs an ice cream parlor. her speciality is triple chocolate sundaes.she can prepare 1 sundae every 2 minutes, and she earns $1.20 for each sundae she makes . if she just makes sundaes for a single shift of at most 4 hours and at least 2 hours , which function relates her earnings to the number of minutes she works?