Q44: The cost of energy delivered to residences by electrical transmission varies from $0.070/kWh to $0.258/kWh throughout the United States; /kWh is the aver- age value. At this average price, calculate the cost of
(a) leaving a -W porch light on for weeks while you are on vacation,
(b) making a piece of dark toast in min with a -W toaster, and
(c) drying a load of clothes in min in a dryer.