What is mdccclxx1?

Is 3 tenths of an a third a third of an inch? How can the square root of 121 be -11? What is 8 tenths of an hour? What is a exponential form of 504? How do you find out 1 fifth of a number? Is 0.32 bigger or is 0.3333 bigger? What has four congruent sides and two pairs of congruent angles? What are the three coins that add up to 40p and 30p? How do you write 31 as a fraction in simplest form? Next number in the series 50 49 47 44 40? What is 3.33 rounded to the nearest hundredth? What is 56 and one fourth as a fraction? First 6 square numbers? How many 30s and in 100? Abc is a right triangle and angle a equals 40 what is the angle ecd? What is 6x10 to the third power? How many times can 9 go into 729? What is 14 times 1300? What is (6d plus 5) -(2-3d)? Compatible numbers and multiples of 10 to estimate this quotient. 3460070?