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Since opposite exterior angles are congruent I would plug in numbers for X till you find a number that goes into both and gets you the same product.
Since every female chicken lays 4 eggs, if you have one chicken you have 4 eggs, if you have two chicken you have 8 eggs, and so on.
We can even build a little table to show some values:

So, as you can see, the ratio between the number of eggs and the number of female chicken is 4.
The percent of increase from 10 to 12 is 20 %. 10 x 1.2 = 12.
Hope This Helps You!
<span>Good Luck Studying :)</span>
Please give more clear explanation for this question so I can help you.