What does 80mm mean?

Can you list some palindrome numbers? Did Romans use place value and why? What is two consecutive numbers whose squares differ by 25? How many could a bacterium can become in 1 hour? How many times does 50 go into 118? Why is it important for people to use the same measuring system? What is 5 over 6 subtract 3 over 6 in simplest form? See pokemon151 and 152 in platne um? How do you write two thousand ten hundred thousandths in decimal form? What is 107.17 as a fraction? Which number is larger 3.9 or 3.901? Write a fraction equal to 1 which has a denominator of 7? What are the two squiggly lines together mean in math? What is 5 over 8 divided by ten? A zone of a lake or pond that extends across the top of the water? What has a a numerator of 8? What nine coins can you use to make ninety-three cents and there are 2 more dimes than quarters? What is 0.543 rounded to 2 decimal places? What is 18 percent of 150 estimated? What early western civilization invented the zero?