Solution:
We are given:
Number of male fishes surveyed by Elena in a river = 350
Number of male fishes with eggs growing inside them = 150
Therefore the number of male fishes without eggs = 350 - 150 = 200
Now the ratio of male fish with egg cells to male fish without egg cells in the river is:
Therefore, the ratio of male fish with egg cells to male fish without egg cells in the river is 
Answer:
umm i didnt understand completly but here is a link
https://www.essaycomplex.com/1-visit-web-site-well-known-company-find-section-states-mission-answer-following-questions-tip-companys-web-site-doesnt-describe-missio/
Explanation:
<span>Members lifted weights: W=32%
</span><span>Members preferred aerobics: A=41%
</span>Members preferred both: B=6%
Members lifted weights only: Wo=W-B=32%-6%→Wo=26%
Members preferred aerobics only: Ao=A-B=41%-6%→Ao=35%
F<span>ind the probability that the member prefers another method neither weights nor aerobics to exercise: N=?
N=100%-Wo-Ao-B
N=100%-26%-35%-6%
N=100%-67%
N=33%
Answer: T</span>he probability that the member prefers another method neither weights nor aerobics to exercise is 33%
Então em 20 anos a terra valeria R$13000
1%de 65000 é 650
650x20= 13000
