Aliens from the planet Jeenkah have based their temperature scale on the boiling and freezing temperatures of ethyl alcohol. These temperatures are 78 °C and −114 °C, respectively. The people of Jeenkah have six digits on each hand, so they use a base-12 number system and have decided to have 144 °J between the freezing and boiling temperatures of ethyl alcohol. They set the freezing point to 0 ° J. How would you convert from °J to °C?