The answer to this is the top option.
The one on the page with the question.
The length should be 80 feet.
This is because the width is 20 since there are two sides for the width in pen, we have to add 20+20. This would equal 40. Then we need to subtract 40 from 200. 200-40 would be 160. Then since there are two sides for the length, we need to split that in half. 160÷2 would be 80. To double check, you can do 80+80, and that would still be 160. So the length of one side would be 80. But of course, this whole thing would only be right if the pen has four sides(but since I have seen many chicken pens, there were all rectangular)
Divide the numerator of the fraction by the denominator. the first two digits of the decimal is the percentage
Answer:
We can have 7 fish in fish tank containing 35 gallons of water.
Step-by-step explanation:
Given:
2 fish per 10 gallons
∴ 1 fish can be in = 
To find Number of fish in 35 gallons of water
Number of fish in 35 gallons would be = 
9 can only go into 32, three times so you will have 5 leftover so that can be written as 3 5/9. You can also check this by taking the denominator of 9 and multiplying it by the whole number 3..this is 27 and then add the numerator 5 to it.
So 9*3+5= 32 and then add a denominator.. 32/9.