Show the steps of solving. a) 6x - 2y = 28 4x + 2y = 12

PLEASE HEL I’ll give brainlist!!!

This is the number of parts out of 100, the numerator of a fraction where the denominator is 100. submit

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?

F(x)=5/6x+3 which of the following is true