20% of 100 is 20. divide that by 2 to get 20% of 50. 20/2 is 10. 20% of 50 is 10. There are 10 blue marbles.
Hope it helped :)
Ali
The difference between a blue whale's heart and a African bull elephant heart is 2963.27 lbs. it will take 49 African bull elephant's heart to equal one blue whale's heart.

Substitute the value of x = 2 to the equation:

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</span>The potential rational zeros are divisors of 14:

and the quotient p/q where p is a divisor of 1, and q is a divisor of 14: