Can someone help me with this

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?

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

You can find the constant of proportionality by finding the ratio of