Answer:
57: 1
Explanation:
You take 228 divided by 4 which will give you 57 you do it to this side so you did the same thing to the other which mean you take 4 divided by 4 which is 1 therefore the unit rate is 57: 1
Step-by-step explanation: 228/4 = 57, so 57/1 = 57:1.
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