The ratio of boys to girls in mrs. brown’s class is 2: 3 there are 8 boys in mrs. brown’s class how many girls are in her class

For the equations below which statement is true ?

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

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?