What does i in a m mean?

Travels 442 miles in 8.5 hours What is the speed? What is the difference between discrete and continuous? What shapes have two dimensional shapes? How many groups divided in material things? Why do you calculate perimeter by adding? What is the highest common factor of 60 and 45? What is 33 and 13 percent of 90? What mixed number is equivalent to 5.84? How do you draw a six sided shape with 3 right angle? How many significant figures are in 5.67X10 6? What is an equivalent mixed number for 34.25? What is the quotient of negative 5 over 8 divided by 4? What is a sixth year certificate? Which of these fractions are smaller 3 fifths or 2 thirds? How many square feet in 147 square yards? What number has the prime fatorization 2x2x2x3x3x5x5x7? Is the square root of 10 real? What is eight percent of forty-five thousand? What is the sum of the measures of a convex polygon? What is a quarter past 6 o'clock?