What is the answer to:
18 - 5z + 6z > 3 + 6

True or false? many triangular shapes can be circumscribed about a given circle

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?

Solve 3x-18=2y and 5x-6y=6 by elimination show work