VISUAL BASIC PLEASE

Grade Scale Program Write a program that allows the user to enter a numeric grade. When the user presses the "Calculate" button, the program will figure out the letter grade using a 10-point scale. Add a checkbox to the form. If the checkbox is selected, pressing the "Calculate" button will figure the letter grade using a 7-point scale instead. Create two separate subroutines - one to handle calculating the letter grade for each point scale. Use clear, meaningful names for your controls, variables and subroutine names. Add a couple comments to explain what is going on