What the w stand for?

How many inches in 600 square feet? What polygon's interior angles add up to 720 degrees? What is 912 divided by 15? How old was David when he wrote Psalm 27? A figure that begins and ends at the same point? What is 63kg in pounds? What is three hundred four ten-thousandths in standard form and expanded? What is rad in geometry? How many microns are 1000 magnification? How much would a 2-liter bottle full of dimes be worth? How do you draw perimeter of 16cm? Is 3.07 smaller than 3.77? What is 2 plus 6 plus 9 plus 7 equals to? What is the percentage of 50 from 995? When are intersecting lines also parallel? A musical tone has a frequency of 410 Hz and a wavelength of 0.80 m - what is the speed of the sound wave? What is the middle of 19 and 25? How many nos between 400 n 600 begin or end with the digit 5? What is the probability of rolling a odd number on 1 roll of a die? Roughly how many centimeters are in an inch?