What is MERCDF?

What is 807 rounded to the nearest hundred? How many dozens in 78? What are some greatest common factors for 250 and 300? What is 58x9 equals? What is the radius if the diameter is 15? What is 4900 divided by 7? What is 874 divided by 23? What is the smallest number that can be divided evenly by 500 600 and 1000? What is d plus 7 over d squared minus 49? 180 divided by 22? How do you write 3000000 plus 40000 plus 8000 plus 2 plus .07 plus .003 in standard form? What is 25 rounded to the nearest ten? Is 145 a good IQ score an adult? What is a shape with all 3 sides and angles of different sizes? What is the x- and y- intercept of 3x plus 8y equals 24? How many numbers lie between 300 and 500 in which 4 comes only one time? You say at Maths or on Maths? What is the conversion factor between warmombs and coulombs? One square inch equals 6.452 square centimeters? 3 quarts - 1 quart and 1 pint?