How many times can seven go into 21?

How many liters are equivelent to 0.3 kiloliters? Is the circumference and the diameter the same thing? Why can you only make 1 rectangle using cm squared as an area? What is 40 percent of 265? What is 3 percent of 43000? What is 5 and 13 over 20 as a percent? Is 0.856 bigger than 0.8561? What is the average trial length? How did the abacus affected peoples lives or shaped society? What is similar about a perfect square trinomial and a difference of two squares? What is the percentage increase from 64 to 245? 600 thousands equals how many tenths? How may meter in a acre? What is the height from Floor to Ceiling of a 53 foot trailer? What is the perimeter of a polygon that has 5 cm on each sides? What does mcmxcvi mean in Roman numerals? What is 28 divided by 120? What is a name of the place on a solid where to faces meet? What are tangent tables used for? What is half of 95?