Answer:
Explanation:
To find the total rainfall this month, we can follow these steps:
1. Calculate 30% of the previous month's total rainfall. In this case, 30% of 3 inches is (30/100) * 3 = 0.9 inches.
2. Subtract this amount from the previous month's total rainfall. 3 inches - 0.9 inches = 2.1 inches.
Therefore, the total rainfall this month is 2.1 inches.