Is 16% of 40 the same as 40% of 16

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?

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

Nikita wants to apply for student aid to fund her college education. arrange the steps involved in nikita’s application for financial aid