17/12 is the simplest form. It cannot be reduced any further and comes out to a repeating rational decimal number.
The number of cards left is 600-280=320.
So the 320 cards left are what percent? we count it like this:

=53.3..%
so the answer is 53.3%
Answer:

<h3>
<u>21√2</u> is the right answer.</h3>
6x^2 -9x -2 just add common variables