What is the chemical formula for the coumpound formed from Mg^2+ and Cl-?

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 does x = in this equation x+3+2x=x+5

Which of the following circles have their centers on the x-axis? check all that apply.