Can some one me with my answer i will be happy if you can it will be do tommrow

Which three of the following choices are advantages of using active voice a) engages readers b) less wordy c) conceals the subject d) less confusing e) object acted on is given importance

Comparing and contrasting is a form of

Kyle and his brother have a marble set of the marbles 12 are blue this represent 50 over a hundred of all the marbles what decimal is equivalent to 50 / 100