1. The problem statement, all variables and given/known data gravitational constant G=6.67x10^-11 Nm^2/Kg^2, M=6.42x10^23 Kg, and R=3.40x10^6 m for mars. Calculate the atmospheric density of Mars. 2. Relevant equations Density of water = 1000 Kg/m^3 Atmospheric pressure = 30 Pa (from what i've calculated) p=M/V 3. The attempt at a solution I just don't know where to start. I'm completely lost. I've looked at formulas online, however they all deal with temperature, and I'm 100% positive I don't need any temperature values for my calculation.