Algebra-1

A unit rate is a ratio where the second quantity (the denominator) is 1. It represents how much of one quantity corresponds to a single unit of the other.

110 kilometers per 8 hours is the option that is not a unit rate because it doesn't compare to 1 unit of time.

For option A, 140 pages per book

This is a unit rate because it compares 140 pages to 1 book. The second quantity (time) is 1 unit.

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