Solve the system of linear equations by graphing.

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters .

What is the perimeter of trapezoid jklm? + units 2 + + units 9 + units 9 + + units

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?