The African Cichlid exhibit water system holds approximately 190 gallons (7.2x105 g) of water. If the tank loses 7,885 kJ of heat to the cool air outside the cafeteria overnight, how much would the temperature drop in °C (enter your answer as a positive number)? Assume that the specific heat capacity of the exhibit is 4.184 J/gC.

Canvas will not accept this answer in scientific notation. Count your zeros carefully.