What has nine of something?

Who was first mathematician to have measured the circumference of the earth? How many 16x16 tiles to make 50 square feet? Is it ever possible for the iqr to be larger than the range? What is the answer of 9000000 plus 123456789102345678890? Which is less 0.35 or 0.30? What is 9409 in Roman Numerals? How much will it be to fence a area of 418 square ft at 6.95 per foot? What is the best example of geometric form? What is 182 divided by 9? What is the sample space of tossing 6 coins? 0.05 write the decimal as a percent? A boy cyclist and a girl cyclist are 10 miles apart and pedaling toward each other. The boy's rate is 6 miles per hour and the girl's rate is 4 miles per hour. There is also a friendly fly zooming con? What is nine to the fourth power? Why it works to break apart a number by place values to multiply? What are the comparative and superlative forms of the word determined? The lines passing through points -5 -3 5 3 and 7 9 -3 3 on a grid would be lines? What does errata mean? What number has 9 thousands and 4 less hundreds than thousands? What is 2A in mA? How to express 4 050 000 000 000 in scientific notation?