What is the point slope form of (4,-1) m= -2

What is the value of x in the equation 6(x + 1) – 5x = 8 + 2(x – 1)?

Abcd is a parallelogram find the valuse of x

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?