What the term-pathy?

Why is the number 80 so important? What are the 3 forms of the formula for finding the circumference of a circle? What is the area of one ton of grain? How many seconds in year 2006? What happens if you get written up twice? Is card a noun? What two squared numbers add together to make 80? What is the repeating pattern covering a plane? When one travels one fourth of the distance around the world along the same parallel of latitude the time number of time zone traversed is like? What is 5.8 plus -2.5? How many time does 8 go into 93? What has 5 sides and 5 diagonals? Is the hundredth right? What is 15 100 as a decimal? Does 13 go into 3? What sithe square root of 4225? Is 456 a subset of 456? What two numbers are the sum of 70 and 19? How many diagonals are in a 15 -gon? How do you slant height of a cone?