In science class richard learns that a substance has a boiling point of 203° Fahrenheit his teacher ask him to convert this temperature to degrees celsius what is the boiling point of petrol in degree celsius

The formula for conversion from Fahrenheit to Celsius is:
(F-32)×5/9=C
thus plugging in our value we get:
F=203° F
thus we shall have:
(203-32)×5/9
=95° C