Since there is nothing attached for me to help you I looked for a website that can find the answer with an explanation. It is called quickmath it’s like a math calculator . Hopefully that helps you .
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Answer: 8 books/ hour
Explanation:
240 / 30 = 8 books/ hour
I hope this helped!
<!> Brainliest is appreciated! <!>
- Zack Slocum
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Using the quadratic formula, we have:

, so our solutions are

and

.
Answer: 1 to 8
Reason: because there’s 1 of 8 items is the same ratio