Ineed with this and the answer for my alg 2 pls

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?

Tcan be concluded that % of the seniors would prefer to see more candid pictures in this year's edition of the yearbook.

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?