Agroup of adults and kids went to see a movie. tickets cost $8 each for adults and $5 each for kids. the group paid $59 in total. there were 10 people in the group.

find the number of adults and kids in the group.

a 2 adults and 8 kids
b 3 adults and 7 kids
c 4 adults and 6 kids
d 5 adults and 5 kids

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?