Answer:the city would receive 72 inches of rain in the entire year.
Explanation:
The amount of rain that the city received during the first three months of the the year is 18 inches.
If it continues to rain at this rate, it means that in 6 months, the amount of rain that the city will receive would be 18 + 18 = 36 inches.
Since there are 12 months in a year, then the amount of rain that the city
will receive in the entire year becomes
12/3 × 18 = 72 inches