80 people exercise in the morning at Planet Fitness. 100 people exerflncise in the afternoon. What is the percent of increase in the
number of people exercising at Planet Fitness in the afternoon?

Which expression is equivalent to the expression shown?

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?

Collin did the work to see if 10 is a solution to the equation r/4=2.4