How many kWh (kilowatt-hours) of energy does a 550W toaster use in the morning if it is in operation for a total of 10 minutes? (b) At a cost of $0.02 per kWh, how much would this add to your monthly eletric energy bill if you made toast four mornings per week? Assume there are four weeks in a month, and 1 kWh = 1000W. Please send answer in Microsoft 2003 version.