Why is post meridiem called post meridiem?

How is dimensional analysis used for unit conversion? What is 10.25 inch in cm? What did the paper that ninety-one people signed say? What is the next term of the sequence 2 4 8? Where is the hundred thousandth in a decimal place? What is a polygon with 10 shapes? How do you write three thousand five and eight hundredths? How much is 70 feet converted to meters? How many syllables are in the word opposite? What is 80 percent of 860? What is 4.78 to a percent rounded to the nearest tenth a percent? How many diagonals are there in a regular 27-gon? 50 is what percent of 125? How many syllables are in jagged? -3n plus 5n plus 4 equals -4 solve for n? What uses a number line and X's or other symbols to show frequencies of values? How many lineal mile in a square mile? How fast would the man be moving if he travels from 10 meters to 0 meters in 5 seconds? What is the measure of each angle in a rectangle? Did Johannes Kepler ever have a degree?