What is premosition?

What fractions is written in reduced form How do you know 9 over 18 10 over 11 6 over 8 18 over 21? Why does subtracting a postive and negative inter always result in a negative integer? Which is bigger 5.11 or 5.8? What is the percentage of 42 incorrect out of 100? What twelve soil regions is Mississippi divided? Is a negative number added by a postitive number a negative number? How do you write one nanometer in scientific notation? How do you beat simeons gemstone game? What is 489.3 rounded to the nearest tenth? Why infinity infinity is not indeterminate form? What is 5 percent of 100000000000? What is 0.375 times 16? What is the smallest number that can round off to 42? The sum of two numbers is 54 and one of them exceed the other by 3.? How does one figure square feet? Written in fractional notation 15 percent equals? What times what is 186? What year was someone born if they are 99 years old in 2010? Which one is larger 1 ounce or 1000 milligrams? What is the area of Nabatieh?