How many tens in 805?

Is 344 divisible by 4? How do you convert a binary number to its hex? What is 225lbs in stones? What do you call the ridges on the sides of coins? What is the height of a triangle that has a base of 8 inches and an area of 28 inches squared? What does converting measures mean? What signs are usually white squares or rectangles? How can you make two arrowheads and a rhombus out of a square? What buses have been imporved serveral times there are currently 3 major categories within each? How do you write 304.5 in expanded notation? When was the first holy Bible written? How would you write six and twenty one hundred thousandths in decimal form? What is dangerous about living for 7 days on just one of sardines? How many 2's must be multiplied together for the product to be a number between 100 and 200? What is the Roman numeral for Cu2So4? What is the best definition of a phrasal compound? What is the symmetry to y-x3? What geometric figures do not have right angles? How do you work out 20 of something? What are digits which give same answer on addition and multiplication?

How many tens in 805?