What is a countertype?

What is 12 65? How many cm are they in 1mile? What is the simplified expression for 8 plus 7y divided by 8? What is 4 over 50 in decimal form? How do you solve use multiplying by 1 to find an expression equivalent to 10 over 13 with the denominator of 78A? What formula is pi d? What is the term for 'no solution' in math? What is the use of hex driver? 7 feet 4 inches equals how many inches? What is 225 percent as a fraction? What is a 6 letter word for a line with angles that's not straight? Is there tetrahedrons in the real world? What eight times six? How much inches is in 15 ft and 8 in? How much power was used if it took them 60 seconds? Which number is larger 0.06 or 0.58? When is some an adjective? What is The number of thousandths in 0.82? What has a second has one whole step and one half step? What is a fact family with only facts?