Answer:
Step-by-step explanation:
2(20 + 22) = 2(42) = 84 total books
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Step-by-step explanation:
For 1. 7/8 is 90 percent so .90
For 2+. Add the bottom together, whatever you get divide top by bottom.
The others you just divide them by each other.

so... you tells us, which filling rate is the bigger and thus faster one?
Answer:
Number is yellow box=3
Step-by-step explanation:
We know this because the way we get that number is subtracting the two numbers above it, which is 8 and 5, which give us 3.
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Answer: Stay the same, 100
Step-by-step explanation: well 7%-7% still equals zero. So it’s not effected, I think.