Christine is currently taking a college astronomy class and the instructor often gives quizzes. on the past seven quizzes, christine got the scores shown below. find the standard deviation, rounding to one more decimal place than is present in the original data. 50 15 31 27 11 42 71

(least common multiples) the answer that i had in the 1st step was lcm of airline tickets sold=72. idk if that even matters but just in case. ! three co-workers are busy selling airline tickets over the phone. in an 8-hour day, charles can sell 8 airline tickets, ann can sell 9 airline tickets, and michelle can sell 6 airline tickets. step 2 of 2: what is the smallest number of 8-hour days needed for each of them to achieve the same number of sales? it takes charles . it takes . it takes .

Lisette takes an ela exam and got 16 out of 27 questions correct. what percentage of the questions did lisette get correct?

The graph below represents which system of inequalities? a. y< -2x+6 y< (or equal to) x+2 b. y< (or equal to) -2x+6 y c. y< 2/3 x - 2 y> (or equal to) 2x +2 d. none of the above