For every one boy, there is five and a half girls
D. represents the relation.
A manipulated variable<span> is the independent </span>variable<span> in an experiment. It's called “</span>manipulated<span>” because it's the one you can change. In other words, you can decide ahead of time to increase it or decrease it. In an experiment you should only have one </span>manipulated variable<span> at a time</span>
If you use a calculator you would get the answer 8. Because 8x8x8=512