What is QW 402?

What is the difference between -1 and -7? How are images and sound converted to binary? Schematic diagram of real number system pictures? How many feet is equal to 200 meters? What is the fifteenth digit of pi? What is 136 degrees f in Celsius? What is the side length of a diagonal 12 centimetres? What Filipino folk dances have 2-4 time signature? Median and the mean of 17 13 27 33 25? Length of square is 2.5 what is the area? What president had 20 to 30 kids? What kind of statements do you prove with geometric proof? What is negative 13 squared? What is the largest equivalence relation on a set A? Can 216 go into 3? Show how 13 is worked from both side of the equal sign for the problem13 plus x equals 106? What is 59 as a Roman Numeral? How do I write 3.9 in expanded notation? What does make whole call at 40 mean? What is 7982.2231 rounded to the nearest one?