Which expression is equivalent to − 5 ( x + 4 ) − 1 3 ( 9 x − 12 ) ? −5(x+4)− 3 1 ​ (9x−12)?

What is the value of x? enter your answer in the box. photo attached.

Given the points a(-2, 1) and b(8, 6), find the coordinates of the point c on directed line segment ab, that partitions ab in the ration 2: 3.

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?