Xis greater than or equal to -4 and less than or equal to 5 how do i write 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?

What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+4

When y’all answer can y’all explain too !