Suppose you have a clothes dryer that uses 4000 watts of power and you run it for an average of 1 hour each day.
a) If you pay the utility company 14 cents per kilowatt-hour of electricity, what is the average daily cost to run your dryer? (Report answer in dollars, to the nearest cent.)
b) How much would you save in a year if you replace it with a more efficient model that uses only 2000 watts? (Report your answer in dollars, to the nearest cent.)