incorrect variable name in day 11(functions)

In day 11 (Functions) ,in problem 3 (level 1) the suggested variable name is (convert_celsius_to-fahrenheit) which is wrong  and must be (convert_celsius_to_fahrenheit)

<img width="1892" height="972" alt="Image" src="https://github.com/user-attachments/assets/936ace48-6595-40d1-9d4d-c57964e1371e" />