Answer:
1. 36 liters
2. 3 kg
Explanation:
because 12 liters is 4kg if you multiply both by 3 you’ll get that 12 kg is equal to 36 liters
also, if you divide both by 4, you’ll see that 1kg is equal to 3 liters. Then with this knowledge, yiucc be an see that if you multiply both by 3; 3 kg will be 9 liters! :)