What is the pressure (in millimeters of mercury) inside a container of a gas connected to an open-end manometer filled with decane (density = 0.7300 g/cm3) when the level in the arm connected to the container is 766.0 mm in height higher than the level in the arm open to the atmosphere? Atmospheric pressure is 754.2 mm Hg and the density of mercury is 13.546 g/mL.