Which expression is equivalent to 1 1/2 plus 1 6/7 I NEED HELP HURRY

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?

Given right triangle xyz, which correctly describes the locations of the sides in relation to

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)