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A bag contains  brown marbles, green marbles, red marbles, and purple marble. Calculate the probability of drawing each color, and write each answer as a fraction, as a percent, and as a decimal.  

Find the total number of marbles in the bag.

Translate the fraction into a percent by using a Giant One with as both the numerator and denominator.

To find the decimal, divide by .

Now repeat this process for green, red, and purple marbles.