PLEASE HELP
Using the diagram at the right, Find the measures of the following angles:
(FC is tangent to the circle)
m∠AEC=34
mDE=85

1. m∠ABC=
2. m∠DBC=
3. m∠ACE=
4. m∠DAE=
5. m∠ADE=
6. m∠FCB=
7. m∠CED=

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?