-54 i think is the answer
2/5ths divides by 3 and 1/10 is 0.129
When you multiply both sides by a negative value you make the side that is greater have a "bigger" negative number, which actually means it is now less than the other side! This is why you must flip the sign whenever you multiply by a negative number.
Answer:
339.29 m³
Step-by-step explanation:
π · r² · h
π · 3² · 12
π · 9 · 12
π · 108