How many acre is 16000sqft?

What about pai in mathmatic? How do you write 7? -14 plus 9a equals 38? The vertex of an angle is? How do you express 499 in Roman numerals? What is the length of the edge of a cube if volume is 1000 cubic meters? How much should an 3 year old boy weigh? What do you mean by accural? How do you put your images in Google image search? What is the area of rectangle with a width of 10 inches and length of 12 inches? What adjective best describes the decade of the 1920's? What property is 0 2525? How do i work out If you think of a number you subtract 173 you add 369 the answer is 536 what was your number? What is a square number and a factor of 24 between 1-20? Who is Dr Fred Whipple and explain his hypothesis? What is the median of 4.88 6.95 8.15 9.29 10.99 12.79 13.12 14.69 23.95 24.20 27.67? What geometric shape has equal sides and equal angles? How can bristle cones live more then 5000 years? Twice a number plus 3 equals 15? What 6 numbers have a range of 4 mean of 9 and mode of 7?