Which point is a solution to y_<4x + 5?

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?

How many solutions does the nonlinear system of equations graphed below have?

Equation for the calculation double 2 and then add 5