Suppose that scores on a test are normally distributed with a mean of 80 and a standard deviation of 8. answer the questions below. (a) what is the 70th percentile? (round to the tenths place) (b) what percentage of students score less than 70? (round to the tenths place, give the percent)

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?