Xian plans to run 20 laps around a track. each lap is 400 yards. so far xian has to run 1680 yards around the track. what percentage of the run has xian completed.

Do graduates from uf tend to have a higher income than students at fsu, five years after graduation? a random sample of 100 graduates was taken from both schools. let muf be the population mean salary at uf and let mufsu be the population mean salary at fsu. how should we write the alternative hypothesis?

Which statement best explains why ben uses the width hi to create the arc at j from point k

What is the value of the discriminant of the quadratic equation -2x = -8x + 8 and what does its value mean about thenumber of real number solutions the equation has?