please i need the answer ASAP

its 57

Question-2. (8 Points) An open storage tank contains two immiscible liquids. The specific gravity of the top liquid is 0.759. Further, the height of the top layer is X ft and that of the bottom layer is 300 ft. If the pressure gauge connected at the base of the tank gives a reading of 156 psig, find the specific gravity of the bottom liquid. (Remember that X is known here and is the last two digits of your AUS ID)