In visual badic .NET:

Pick one of the following functions or sub procedures that have not been chosen by someone else, and write the code that would perform the condition.

Write a function that will return the area of a rectangle.

Write a function that will return the absolute value of a number.

Write a function that will return the letter grade when passed a test score, where a score between 90 and 100 is an A, etc.

Write a function that will return a full name string when passed a first name string, a middle name or initial string, and a last name string. If the middle initial is blank, there should be only one space between the first and last name.

Write a sub procedure that enables 3 text boxes on the form when a checkbox is enabled and disables the 3 textboxes when a checkbox is disabled.

Write a sub procedure that will clear the input controls in VB Solution 4. (These controls are cleared by both clearButton and completeButton.)