Question

Your friend who is visiting from Canada just took her temperature. When she reads $99.8°F$, she becomes concerned that she is quite ill. How would you explain this temperature to your friend'?

Short answer

Explained this temperature to our friend isnormal temperature is $98.6$. On the temperature scale her temperature would be$37.7°F$ ,a gentle fever.

Step-by-step solution

Definition

The Celsius is directly proportional to Fahrenheit.which means that

When the temperature intemperature scale increases, it’s Fahrenheit temperature equivalent temperaturealso will be high.
When the temperature ininternational scale decreases, it’s Fahrenheit temperature equivalent temperaturealso will be low.

Explanation 

In the we still use the Fahrenheit scale of measurement. In $°F$, normal temperature is $98.6$. On the temperature scale her temperature would be $37.7°F$, a gentle fever.