Write a Python code to implement the following
If the last character in a 5-character string s is ’y’, then
1. change the ‘y’ to ‘i’
2. add ‘es ’
3. assign the result to a variable plural.
just add ‘s’ and assign the result to a variable plural
Given a numerical test score between 0 and 100, print out the letter grade equivalent according to these rules:
Write a program that display whether the value of x is in [L,R] or not
X is inside the interval [L,R] if it is no smaller than L and no bigger than R.
Hint: use input prompt function to read the values of x, L and R