Insert parentheses in Expression 2 so that it has a value of 19. Then show why your expression has a value of 19.

How far could you drive on 50 gallons of gas

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?

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.