Rational Exponents (See attachments)

2x + 1 < 5 solve the following inequality. then place the correct number in the box provided.

How do i get my dad to stop making me gargle his pickle i want my mom to gargle my pickle not my dads

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?