How fast can the X-15 rocket go in 15 minutes?

Which is largest grams or milligrams? What number is a natural number but not a whole number? Is -22.6 a rational number? If a can of paint is 0.3 m high and has a 0.5m circumference what is the volume? What is 5 over 8x plus 1 over 4 2 over 3x plus 6? What is bigger 2 miles or 3 kilograms? What graph shows discrete data? When a CFG is termer to be ambiguous? How many years is it from 1998 to 2012? What is the LCM of 27 and 4? What is the value of 5.7x10 to the 8 power? Is 162 a multiple of 81? How do you find the least fraction? What is derived quantity? What is the next number in the series 38 36 30 28 22? Was Bartholomew a blind man? What is the answer for this equation 2x-y equals 3and x plus y equals 6? What are the factor pairs of 1280? How much should you weight at age 13? What is the mathematical definition of work?