Chester has a coupon for 3/10 off a shirt if the shirt originally cost 30.20 what discount would Chester receive from using his dicoount

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?

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.