How do I get $0.52? I'm confused on the steps to get the answer.

Practice Problem 14.4 Price of a Bubble Bath If the cost of electricity is $0.080 per kilowatt-hour, what does it cost to heat 160 L of water for a bubble bath from 10.0 C (the temperature of the well water entering the house) to 45.0 C? [ Hint: 1 L of water has a mass of 1 kg. 1 kW.h = 1000 J/s x 3600 s.] Answer a minimum of $0.52