What is the median of a data set with 13 elements?
+
Question: What is the area of a circle with a radius of 3 units? What is its circumference? What is the perimeter of a rectangle with length 5 units and width 8 units? What is the area of a parallelogram with base 6 units and height 4 units?
+
Math question: Find the derivative of the function f(x) = √(3x^2 - 4x + 1).