HELP ASAP PLEASE! OK so i have 3 questions but whoever does 2 gets a heart and 5 star review
and whoever does all 3 gets all that and brainliest
please do all 3

What is the rotational symmetry of a wheel

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?

Give me the equations of two lines that have the same slope but are not parallel.