I'll pick a brainliest the slope, m, of a linear equation can be found using the formula m = y2-y1/x2-x1, where the x- and y-values come from two ordered pairs, and (x1, y1) and (x2, y2). what is an equivalent equation solved for y2? a. y2 = mx2 – x1 + y1 b. y2 = mx2 – x1 – y1 c. y2 = m(x2 – x1) + y1 d. y2 = m(x2 – x1) – y1

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?