Darla needs to pay $4/watt of electricity for 300 watts of electricity, plus a $150 late fee. How much does she pay in total?
Thoughts? Step-by-step reasoning:
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First find the total cost of the electricity: $4 / watt * 300 watts = $1200. Then add the late fee: $1200 + $150 = $1350.
Thus, the answer is 1350.
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