Simple word problems, a.k.a. possible test problems: Write a function that accepts as a parameter the radius of a circle, and PRINTS out the area of the circle. (Hint: A = pi * r * r ) Write a function that will accept 3 numbers as parameters, and return the average of the 3 numbers. Write a function that accepts 3 numbers as parameters, and returns the largest of the 3 numbers. (If two numbers are equally largest, you can return either one of them.) Do it again, for a function that returns the smallest of the 3. Write a function that asks the user to enter a positive integer. If they enter anything else, keep asking them until they enter a positive integer. Then, return it. Write a function that will print the numbers 1,2,3,4,5 in that order. You must use only a FOR loop. When you have that working, re-write the function to use only a WHILE loop. Write a function that will print the numbers 5,4,3,2,1, in that order. You must use only a FOR loop. When you have that working, re-write the function to use only a WHILE loop. Write a function that accepts a string as a parameter. It should create a new, reversed copy of the string, and return it. Write a function that will accept a string as a parameter. It should create a new string that is exactly like the old string with one exception. Any time a small letter j occurs in the original string, it must be replaced with a capital letter J in the new string. Return the new string that has all small j's replaced with capital J's.