input: Write a function to convert a temperature from Celsius to Fahrenheit. The function should take a single parameter, temp, which is the temperature in Celsius, and return the equivalent temperature in Fahrenheit rounded to 2 decimal places.
  assert celsiusToFahrenheit(0)==32.0
  assert celsiusToFahrenheit(-40)==-40.0
  assert celsiusToFahrenheit(100)==212.0
output: def celsiusToFahrenheit(temp):
      return round(temp * 9/5 + 32, 2)