The SI unit for energy is the Joule (J). Sam wants to convert 338.25 J into kJ.

One kilojoule equals 1,000 joules, so converting joules to kilojoules means dividing by 1,000. Thus, 338.25 J ÷ 1,000 = 0.33825 kJ. The correct choice is D: divide 338.25 by 1,000.

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