4[3(2^2-3)]+ 4^3 (the number after the upside down v is the exponent.

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?

Which type of graph would allow us to quickly see how many students between 100 and 200 students were treated?

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.