15 points here if you could help me out :)

Dimethlylhydrazine has a molar mass of 60.10g/mol. It is made up of carbon, hydrogen, and nitrogen atoms. The combustion of 2.859g of Dimethlylhydrazine in excess oxygen yields nitrogen, 4.190g CO2, 3.428g H2O, what are its empirical and molecular formulas?