HELP IN 1 MINS ASAP PLEASE
Which rates are unit rates?

Choose all answers that are correct.

A.
200 pages every 2 h

B.
3 water fountains per park

C. 9m/1s


D. 90 words/2 mins



Answer :

A, C, and D 
A because for every 2 hours you're reading 200 pages.
C because for every 9 minutes, 1 second? (honestly that confuses me) 
D because for every 2 mins you type 90 words 

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