The Hootville volleyball team practiced for 1 3/4 hours on Monday. 2 1/2 hours on Tuesday, and 1 1/2 hours on Wednesday. On Thursday and Friday they participated in a tournament. How many total hours did they spend practicing on those 3 days to prepare for the tournament?

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

Which number line represents the solution set for the inequality -1/2x> 24?

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?