Functions Assignment

Part 1.

Hello, World!

Part 2.

A rectangle of length 45 and width 35 has an area of 1575.

Part 3.

1234
new 1new 2new 3new 4

Part 4.

A rectangle of length 54 and width 10 has an area of 540.

Part 5.

My function returns the factorial of any given positive number.
Factorial of 6 is: 720
Factorial of 4 is: 24