Answer:225
Explanation:
According to the givens, these 20 families represent a sample of all.
18 of 20 is 90%, which means that if this sample represents all families correctly, 90% of 250 families recycle, which is 225 families.
Answer: 225
Step-by-step explanation: 250 / 20 is 12.5 and 12.5*18 is 225
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