Create a function convert_fahrenheit that consumes a single temperature in Celsius and returns it in Fahrenheit. Then, use that function inside a for loop to convert and print each of the following temperatures: 10, 20, and 30.

The formula for Celsius to Fahrenheit is as follows:

Be sure to read these instructions carefully - write a function that consumes a SINGLE temperature, not a list!

Unit test your convert_fahrenheit function exactly once.