Answer:
C. Robert can read of a page every minute.
Step-by-step explanation:
Unit rate is usually based off of a unit of time and what type of time, however, it is 1.
For example, the unit rate MPH. This means "Miles per 1 hour".
Or take another example, KPH, or "Kilometers per 1 hour".
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The only thing you can do with this expression is to factor a 5 out of the two terms: we have
A. 5 : 3
Number of blue cups : Number of red cups
10 : 6
Divide to the lowest terms
10 ÷ 2 : 6 ÷2
5 : 3
