How do you reverse the mean in maths?

Why are angles and radians measured counterclockwise? How many faces a prism have? What is 133 in Roman numerals? What is a true statement about the early history of Jamestown? If you pull a card from a deck of cards what is the propability of getting a king or a heart? How many hours is 8am-5pm? How many days in 21 years? Specs for micros 4700 pms interface? If the divisor is 4 and the quotient Is 8 what is the dividend? How do you factor 18X squared plus 2? What animals are specified in the new testament as being presented at the birth of jesus? Is division an adjective? A number that can be written as a fraction of two integers? What 3 Consecutive Integers That Equal 5961? What times four equals 72? What is the maximum number of triplets produced by the four bases? What is 1 minus negative 25? How many millimeters is 5 feet 5? How do you convert 0.15 1000000 per cubic millimeter to per ml? When excel follows the order of operations the formula 83 2 equals?