How do the totals for Bubble Sort (Exercise 4.7) compare with those for Selection Sort (Exercise 4.3)? How many comparisons would you estimate for Bubble Sort with n = 20? Can we say exactly how many exchanges there will be with n = 20?

If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.

Asurvey of 45 teens found that they spent an average of 25.6 hours per week in front of a screen (television, computer, tablet, phone, based on the survey’s sample mean, which value could be the population mean? 2.3 hours 27.4 hours 75.3 hours 41.5 hours

Which of the following parabolas opens down?