This morning, Romain notices that the temperature was below zero when the temperature was - 11 1/2 degrees. It's afternoon now, and the temperature is 9 3/8 degree

You didn't ask any questions, but there is enough information here to determine how hotter or colder the temperature has become from in the morning till the afternoon.

Answer:

The weather is 20 7/8 degrees hotter in the afternoon than it was in the morning.

Step-by-step explanation:

Romain notices that the temperature was - 11 1/2 degrees.

This corresponds to - 23/2 degrees.

In the afternoon, the temperature becomes 9 3/8 degrees, which corresponds to 75/8

This statements tells us that therm temperature has been (23/2 + 75/8) degrees hotter than it was initially.

23/2 + 75/8 = 167/8 = 20 7/8