Answer:
7 x
------ = -----------
20 400
Explanation:
We want a ratio of bass over the total in the pond
Adding the samples
(8+6) 14 7
-------- = ------------ = ---------
(20+20) 40 20
Set this equal to a ratio of 400 total fish
Bass on top, total fish on bottom
7 x
------ = -----------
20 400