What is AR380-53?

What is one fourth cut in half? What is the mean value of 268 and 1258 and 900 and 654? What is the meaning of the right hip in the Bible? How do you draw a scale that is 16ft as in 16 yd? What if the problem is 4 to the negative 2 power? What is 54x63? What is 1040 in Roman numerals? What 21000 divided by what equals 400? What is 4y minus 12x equal 8? Is an IQ score of 170 good for a 12 year old? What are Albert Einstein's accomplishments? How many holes does it take to fill the Albert Hall? What is arminion? How do you delete your mymaths account? If a length is twice the width and the perimeter of a rectangle is 120 cm what is the area of the rectangle? What are some jobs that involve probability? What is 19 out of 50 as a percantage? How many months its 150 days? What is equevalent to 44 over 55? What is half of 2 hours?