This is a rational and irrational math problem my class is working on, can someone be kind enough to give me the answer. -Thank you

What is the average rate of change for this function for the interval from x=2 to x=4 ?

Which is greater, 7 p 5 or 7 c 5? 7p5 7c5

The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score