Write an algorithm and draw flowchart to calculate the perimeter of a square?

Sure, honey. First, let's keep it simple. To calculate the perimeter of a square, you just need to multiply the length of one side by 4. So, if the side length is "s", the formula is 4s. As for the flowchart, draw a square with "s" labeled on one side, then an arrow pointing to a box that says "Perimeter = 4s". Done and done, darling.