Kurt is staying in Portugal and is trying to make a roast. His cookbook tells him to preheat his oven to 475°F, but the oven is only marked in °C. Where should Kurt set the oven, to the nearest tenth?

Convert Fahrenheit to Celsius using °C = (°F − 32) × 5/9. For 475°F, (475 − 32) × 5/9 = 443 × 5/9 ≈ 246.1°C. Kurt should set the oven to 246.1°C, choice C.

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