Two numbers that multiply to 20x^2 and add to -9x

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?

The measure of angle 0 is 600 degrees

Which graph represents the given linear function 4x+2y=3