What temp F when -7C?

To convert -7°C to Fahrenheit, you can use the formula ( F = \frac{9}{5}C + 32 ). Plugging in -7 for ( C ), the calculation is ( F = \frac{9}{5}(-7) + 32 ), which equals 19.4°F. Therefore, -7°C is approximately 19.4°F.