To anybody who is really good at math can you click on the image and answer the 4 questions please and thanks!

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?

Joanie wrote a letter that was 1 1/4 pages long. katie wrote a letter that was 3/4 page shorter then joagies letter. how long was katies letter

Which answer choice is it? is it the first ,second, third or fourth giving 40 points for whoever answers correctly you