How thick is 80mm?

The Roman numeral at the top of a column on the periodic table indicates the number of in the outer shell.? What day of the week was July 20 1968? How many rectangles with demensions 6cm and 15cm must be used in order to form a square with the smallest area? What is 184 rounded to nearest 10? Which one is first 0.013 or 0.13? Is the number 2163 divisible by 3Why? How many minuits are there in six hours? What does haphazard mean? How do you write 9 over 200 as a decimal? Is 1000000 a integer? How many carbohydrates does it take to make one starch? What is 73 divided by 15? Are units and credits the same? What percent is equal to a 1 whole? Convert 1003.09 to scientific notation? What's a ray angle? What are all the prime numbers from 1-8? What is the area of a rectangle two and a half inches in width and four fifth inches in heights.? How many taluqs in ramnagaram? What line type connects 2 ends of a circle?