The energy used is calculated as:

$\overline{){\mathbf{E}}{\mathbf{=}}{\mathbf{P}}{\mathbf{t}}}$

If a 4500 Watt oven is on for 4 hours, then how many kilowatt-hours (kWh) of energy are used? 18.0 kWh

If the power company charges $0.10 per kilowatt-hour (kWh), then how much did it cost (in dollars) to run the oven for the 4 hours in the problem above? _______dollars

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