The answer to this is -37/4
First you had to remove parenthesis first.

Multiply by the numbers.

Final answer 



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-Charlie
It has 3 zeros, because its a polynomial of degree 3.
There are 40 cats in the ecosystem.
You set 1/5 equal to x/200. Then you cross multiply the fractions to get 5x=200. You divide both terms by 5 to get x, which equals 40.