In a 3.5 mile stretch of river in columbia, 430 fish were captured and marked. 2 weeks later a total of 450 fish were marked. the total length of the river is 12.4 miles. estimate the fish population in this river during this study

we would need to see the picture to answer it

not sure if this what   you'r looking for would be percent composition

thinking it would be d not too sure but i think it's right

1. b.

2. d.

3. a.

5. d.

6. c.

these are the only ones that i know, i hope this , and good luck.