HELP ME PLS (Take the input from the user for all the programs)

a. Write a Python program find Power of 2 for a Number.
Example input 4, Output 16.

b. Write a Python program find Cube of a Number,
Example input 4, Output 64.

c. Write a Python Program that reads a Celsius(C) degree
from the user and converts it to Fahrenheit(F) and
displays the result. The formula for the conversion is
as follows: F= (9/5) *C+32

d. Write a Python Program, which take marks of four
subjects from user and display the average marks.

e. Write a Python Program that read a string S, then
repeate S five times. Example input S: "Sara",
Output: Sara Sara Sara Sara Sara .

f. Write a Python Program that prompts the user to enter
a weight in kilograms and height in centimeter and
displays the BMI. BMI=