What is halve of 27?

What do you mean by labor cost variance? Why isn't a triangular pyriamid not a polygon? What is 225000 in scientific notation? What are the special features of a square based pyramid? How much money is a pound of dimes? Fruits which are oval in shape? What is the gcf of 14 and 22 by using prime factorization? Does machines multipy a force and distance at the same time? How do you prove 2 equals 1? What shape has at least one right angle? What shape has same area and perimeter? How old are you if you were born in 1956? How do you find the volume something? Is 100 000 a lot of money? Why is post meridiem called post meridiem? What is the average speed of a car that traveled at 192.5 in 3.5 hours? What is 1000 trillion? How do you round 30.089 to the nearest hundred thousand? What is 3 5s of 10 15s? Is 97 a bad IQ score for a 6-year-old child?