How many yards of material is needed for a 80 foot round pen 2 inches deep?

What is 99 percent of calcium in the body? What occures onece in every minute twice in every moment and never in a million years? Is the number 1.2731568 a natural number? What is one half of six? What is the diameter of r equals 13? How many segments are the brains divided into? Why are graphs and charts important to analyze data? How many 2x2 tiles fit in a 10ft x 15ft room? How many hour for 365 days? What are 2 equivalent fraction for 5 8? What is that substance growing out of my ceiling I thought it was a mound of dust about a quarter inch big then I wiped it off and saw the paint was missing It grew back again after a few hours? What is the width of the rectangle - Area 40 in and Length - 5 in? Which lines are the tube lines which have no branches at all? What is never a quadrilateral with 4 right angles? Can Minoxidil 5 percent cause an arrhythmia? What is the volume of all the objects combined rounded to the nearest foot? How do you write a decimal as a fraction example .04? Can a fraction with the same numerator and different denomenator be equal? What is 235 decreased by 15 percent? How many years are in 36000 seconds?