What does LXXXIX mean?

What is the area of a circle with a circumference of 12.56 feet? Where to find all 100 hi? How can you find the volume of a cuboid? How many days are in a decade if there's only 2 leap years? Names of a 20 sided polygon? Angle that measures 180? What does community property of multiplication means? What 10 coins make 25 cents? What is 555 - 555 - 55 x 0? What is the cube root of 27a12? What is the gcf of 256 and 80? Smallest to largest 5.92 0.95 9.25 2.95 0.92? Why is 73 prime? How old is February 25 1988? The geometry of a methane molecule is that of a? What is 3.617 correct to two decimal places? What is the answer to three divided by eight over fifteen? What is 34016.45 rounded to the nearest ten? If she ran 2 miles in 15 minutes. how fast did she run? What is the root word for superlative?