Solving these problems in PYTHON. Please show steps.

Chapter 4: d27) Write a Python function named factorial. It takes a numeric value as a parameter and it returns the product of all positive integers less than or equal to the perameter. For example, if the value of the parameter is 6, the factorial function ) returns 720. 8) Write a Python function named every3rd, It takes a numeric value as a parameter and it calculates the sum of the multiples of 3 up to the value of the parameter. For example, if the value of the parameter is 20, then the function returns 63. 29) What does the following function do? What is the value returned if the function is called with 6 as the parameter? def doSomething (some Number): someOtherNumber someNumber for val in range (5): someOtherNumber someOtherNumber val return someotherNumber 30) Rewrite the function in problem 29 so that it is clearer to understand. Use comments and descriptive variable names