+40 In an area in which electricity costs 8 cents/kilowatt-hour, a 5 kW clothes dryer runs for 90 minutes to dry a load of laundry. How much did it cost to dry these clothes?
A) $0.20
B) $0.30
C) $0.45
D) $0.60
In the meantime, I'll continue my attemps at solving this "probably really easy but I'm too dumb to figure it out" problem.
