I would appreciate some help to understand the steps on how to get this answer

Logging in. Going to try to hit another 80 questions today but more focused not on volume but quality as im reviewing the mistakes from the last couple days. So heavy using the loop strategy

Let's go. Lets work hard loggin on

The question says "per batch" and that threw me off. I was very confused and thought what is a batch how many pounds but then i js thought of it as the whole thing. Any ideas on how to think about something like this?

I'm going to do 120 questions today and then do a big review of everything i've gotten wrong. This is math and reading components. Hope to get 200 questions with an average of 77%+ accuracy on 73% difficulty. That's the goal