What does 88cm - 69cm?

What integers are used to represent binary numbers? What is the percent change in 32 to 28? How do the experimental ratio compare with the expected ratio? When is angle of incidence equal to angle of reflection? 0.5 km equals how many meters? How close air is to its maxuim humidity mesured as a percent? What is a frag 7 hmmwv? What is 60000 divided from 5000? Is vector A parallel vector B given that vector A is equal to the zero vector and vector B is equal to the zero vector? Which expression gives the distance between the points 46 and 73? Can you solve the equation y equals 2x plus 3? What country had a zero births in 1983? What is twenty-five percent of sixty? What is the prime number of 81 is it even or odd? What does aboral surface mean? What fraction is 0.10? What is 1400 minus 1140? What is the area of a parallelogram with a base of 3.5 meters and a height of 1.2 meters? Explain the difference between trade discount and cash discount? What is ACTMSS on a silver ring?