What percent of 84 equals 12?

What is 21 over 9 in a fraction as a simplest form? How many inches is 46 millimeters equal too? Explain Where the constant ratio of pi comes from? What is the proper way to list measurements? Quadrilaterals are polygons that have three sides? Why factorial has an exclamation sign? What organisms are smallest in number? There are 2 numbers in a 6 to 7 ratio 2 is added to the first number and 1 is added to the second number and it now becomes a 4 to 5 ratio what are the 2 numbers? How so you write 83.7 in scientific notation? Word form and value of .000636? How much money in a role of quarters? What is the prime factorization of 513? Where did copra comes from? How many inches is in 8 yds? How many yards of carpet for a room 10 ft x 13 ft? What does orange square Non-Lateral Marker indicate? What is 2 ninths plus 2 thurds equal? What number goes into 28 and 100? What is the formula of getting the angles using radians? Is 20 a direct variation?