Imao y’all what do I do my ex is calling me and ok this ain’t the right place to ask these type of questions

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?

The quadratic function h(t)=-16.1t^2+150 choose the graph representation

Explain why the factor 1.5 is broke. into two numbers in the model.