1. What type of function is x²+2x+1?
2. In the complex plane, multiplying a given function by i rotates it anti-clockwise by how many degrees?
3. What is the area of a circle with a diameter of 20 inches if π= 3.1415?
4. How many zeptometres are inside one femtometre?
5. The metric prefix "atto-" makes a measurement how much smaller than the base unit?