Answer:
Total rainfall = 39 inches.
Step-by-step explanation:
The question is not properly qualified. I am assuming that the first month, 12 inches of rain fell (that is an awful lot) and for the next 9 months the rainfall was 3 inches per month.
Let R be the total rainfall.
R = first month + 9*3
R = 12 + 27
R = 39
