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1. 110 °C
°R = 4/5 × °C = 4/5 × 110 = 88 °R
°F = 9/5 × °C = 9/5 × 110 + 32 = 198 + 32 =230°F.

2. 640 °
°R = 5/4 × °C = 5/4 × 640 = 800 °C
°F = 9/4 × °C = 9/4 × 640 + 32 = 1440 + 32 =1472 °F.