20 POINTS! HELP ME ASAP PLEASE! Scientists tag and release a group of salmon after they hatch. Later, they catch a
sample of salmon that return to the river and check them for tags. In one sample, 40
out of 800 returning salmon have tags. What is the best prediction of the total
number of tagged salmon in a sample of 2000?

I believe it’s 100

100

Trust me i did it in my head.  Hope this helps

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how to award brainliest:

you must wait until 2 people answer to award brainliest. i'm pretty sure that it should be next to the "" and "comments" buttons.  

it's undefined because anything multiplied by 0 is 0. that said, 7 days is 168 hours